i would add a coolermaster hyper 212 pLus for CPU cooling the 300 illusion has plently of case fans.
your gonna need a little more powerful graphics card if u go with a 1900x1200 monitor
i suggest a HD6950 2GB
also a Corsair TX750w V2 power supply
Ill get the coolermaster stuff, but the graphics card Im just going to get a 6870 HD and downgrade my monitor abit. I dont neceserily need the best stuff, so yea. and I got the powersuply upgrade aswell. Thanks