well the 2 parts will work just fine together
adn as for widescreen w/ games...i play Fifa 06, Day of Defeat:Source (meaning that all Valve games will most likely also support widescreen) those are the only two game i've bothered to use w/ widescreen so idk about the rest i play.
hope that helps some.
Antec NeoPower 650W
Intel Core 2 Duo E8400 (w/ Arctic Freezer 7)
4GB DDR2-1000 G.Skill
Sapphire x1950 Pro 512mb (w/ V700)
250GB, 500GB and 1.5TB Seagate Barracudas (2.25TB total)
Fatal1ty XtremeGamer sound card *** generic TV tuner
Xclio 3060 case *** HannsG 22" monitor
XP Pro / Ubuntu 7.10 *** Razer Copperhead and Tarantula