Msi VTDR FX5600 or Ti4200...which one u suggest ?...

Hi ! I have a
AMD 2100+ XP
ECS k7s5a
640megs of RAM PC133
60 gig
Abit GF2 MX400 64megs

Im a big player of BF1942 (www.planetbattlefield.com) with the MOD DC
(www.desertcombat.com) on the net and i can only play on 800x600 with
medium details cause it lag if tue resolution is too high.

Im looking for a new video card and i dont know if it a good choice to go
with a Ti4200 (used 1 year) (dont know wich brand) or a FX5600 (used 1
month!)(MSI VTDR). I know the MSI have the editor's choice of Tomshardware
and i know the FX can run on DirectX 9. Any suggestion ?? In Canada the
Ti4200 is about 160-180$ can and the FX5600 is 200$ can (shipping
included). Both card are used...

Any comments or suggestions will be appreciate...sorry for my bad english.
THX !

--
Bli =)