Its a very good card, I think any Geforce4 Ti 4200 (64 or 128mb) is the best all-around deal in videocards. Stay away from the Geforce 4 MX 440 and 420 cards. Thier graphics look nice but these cards become framerate slugs when playing games like Unreal Tournament at higher 32bit resolutions.
I kinda like PNY's 64mb card better than BFG's version - it comes with heatsinks for the memory and the standard Nvidia fan. (and the PCB is a sweet looking purple!)
I have had freinds who have had major problems with ATI Radeon cards (locking up, not working correctly with older games) I got them to take back that card and switch over to Nvidia, and they're not going back!