Tom's hardware did a recent round-up of several Geforce4 cards.
You can check it
here.
After reading through that I would be leaning towards the Abit, it seemed to provide the best performance/feature ratio at the 4400 level, which is what I would be looking at, the 4600 don't seem to be worth the extra money. Not to mention the Abit cards are the most silent according to the round-up... yours ears will thank you later
I also just noticed on newegg, the Abit Siluro Geforce 4 128mb Ti4400 in retail box is only $225, that may be one of the cheapest ti4400s I've ever seen, I think I'm going to have to order one now heh.