Thats gonna be a sweet system,
may i recommend a X800XT instead of XL, maybe get Corsair or OCZ RAM,(those are strange timings), and maybe a Sony or LG DVD Burner instead as ive heard some strange things about Lite-On burners!
Niiicccccee screen!
as matt555 said dont go with maxtor please!
and these days an absolute minimum of 512MB RAM is hghly recommended, and should consider Corsair or OCZ RAM!
And if that case comes with that PSU id also recommend a new PSU, like OCZ, Enermax or Antec!