Can I be able to play Crysis?

Yes you''ll be able to play crysis smoothly, but instead of 9800 GT buy GTS 250 which has a lower TDP and same performance.

http://www.buy.com/prod/evga-geforce-gts-250-512mb...

The power supply will fit in the case but change the power supply and buy this one;

http://www.newegg.com/Product/Product.aspx?Item=N8...

Be able to play it? Yeah probably, at a very high resolution or very smoothly... probably not. Crysis is a very demanding game on a computer. From the links you posted I'd go a step up on the PSU and the video card. The PSU is only 585w and the 9800 GT was good back in the day, but we've moved a lot forward since then. For about 50 bucks more you can get a MUCH better card. Not to spark any fan boy wars but the Radeon 5770 is around 140 give or take on manufacturer and has been proven to be a workhorse. Just make sure no matter what you do when buying a PSU or a graphics card, read the reviews, make sure its a quality product, and read the minimum system requirements for Crysis to make sure all your new items will play well.