I hope you didn't pay a shitload of money for this shitload of.....shit
And yeah Crysis in particular is gonna be a pipe dream on that rig. Even top of the line gaming rigs are brought to their knees by a lot of the new games coming out.
I ran Crysis Warhead in 1024x768, 2x FSAA and probably on medium settings with a little tweaking up and down on certain options and it definitely taxed my system.
My computer is what is considered a mainstream, general gaming PC.
Intel Core 2 Duo 6420 @ 2.13ghz
4GB DDR-2 (I run XP so it only sees 3.5gb)
MSI model NX8800GTS (Geforce 8800GTS 512, G92 core SLI capable)
Gigabyte P35-DS3R Motherboard w/ Realtek 889A High Definition 7.1 Audio
Just that right there when I bought it cost I think close to $500. A lot of it is cheaper now and its still one hell of a decent gaming rig. I play most stuff at either 1024x768, 1152x864, and 1280x1024 on my 19" Samsung SyncMaster 931B.
The monitor was around $250 when I bought it new a couple years ago.
If you seriously want a gaming rig, save your money for a year or so and set a goal of around $1500. It doesn't matter what you think you want NOW, because even if the products change every 6 months or so, the prices stay about even.
Save your money, build a totally new PC. get a minimum 650W BRAND NAME power supply, a good case with 120mm fan spots on the bottom front and rear top, just below the where PSU sits.
Get a good brand motherboard like Gigabyte, Epox, or Asus (make sure you buy the right board for the right CPU brand). Make sure your motherboard is SLI capable (two PCI-E slots)
Get an Intel CPU unless a good AMD in the same price range that performs better is available
Buy a minimum of 4GB DDR-2 or DDR-3 (make sure your mobo supports the RAM you buy). I reccomend 8GB if this is gonna be a gaming rig.
If you are lucky your motherboard will have an onboard Realtek chipset. ALC889A or better. My onboard sound is just as good, if not better than my Sound Blaster X-Fi Xtreme Gamer card, I took it out months ago and no longer use it because I am boycotting creative and their products. They systematically fuck over buyers by rendering options their cards came with NOT work in Vista by disabling them in the drivers, and then claim you need to upgrade your model to get those features back.
I don't like ATI.. But if you can find a good Cross-Fire (ATI's SLI solution) model that performs great and is cheap enough that you can buy two. Get them. Same deal with Nvidia, buy a good high end model that is SLI capable. Geforce 9 series or better. Whichever brand you choose, make sure you buy an SLI capable model. You can even buy a single high end card, and then save your money again to purchase another of the same model in a couple months, hopefully when the price has dropped.
That's all you need for a good core gaming rig.. You can do what you want with your monitor and hard drives, cd/dvd burners, etc.. Personally I don't like widescreen monitors and they force you into weird resolutions that can make it harder to render some games decently as a result. Plus you don't get to use the whole screen when using older games that are not made for widescreen ratios. You can also do that with newer games but whats the point of buying a widescreen then, unless you watch lots of DVD's or plan to play games made to look good in widescreen.
As far as your hard drives. Get Serial ATA, IDE is practically dead and performs a little worse. Lots of cheap SATA drives out there now.. 1 TB drives (1,024 GB) for a little over $200 are becoming more common, especially when on sale. That's all you'll need unless you are addict to porn, hentai, and downloading movies, anime, etc.. As for speakers, I am a loyal Logitech Customer. They make great speakers although I am less happy with the bass output of my newest set. (X-540's) They have more punch than low boom. My first set of 4.1 speakers could shake the windows in my bedroom from the bass, and that wasn't even a 100W system. Logitech is still a great speaker company though and make affordable surround sound solutions for PC's. I even have an older model 5.1 system hooked up to my TV for surround TV, movies, and PS2, etc.
Take my advice or don't take it.. But if you ever want to run emulators for systems like the PS2, Dreamcast and newer. Play kick ass PC games, and overall have a nice fast computer that can handle itself and do lots of stuff. You'll at least take what I have said, and make your own plan based on it.
Educate yourself, read articles about computers, how to build your own and take care of it. Learn about Internet Explorer's security problems, learn about free spyware and anti-virus programs. Learn about torrents and how to use them, and use them safely so you don't blindly download crap laced with trojan and other viruses or junk.
Your PC won't be worth shit if you let sites install spyware and crap on it after all.