Greetings... I recently had a similar situation- wanted to purchase a Cheaper VidCard for a secondary gaming rig. I run two main machines with one having a Ti4200P Turbo and another having a G3 Ti200- but, for whatever reason, neither will play a certain RPG (still trying to figure this out). Anyways- I set up a 3rd machine specifically for this game and purchased a G4 MX440 from
www.compgeeks.com for $47.00 . I have always stayed away from the MX Cards, but have to say- in this situation, the Card is Excellent and Inexpensive. I have been very pleased with it considering its lack of certain features.
Depending on the amount of use and demands your secondary rig has, a similar card may be perfect. Or, you could spend some xtra money (since you are spending it already) and upgrade your current card and then use the Ti200 in your secondary.
GoodLuck!
Mortis