tr64 openGL is excellent. Rice's Deadelus 4.6 is excellent. Jabo's Direct 3d6 V 1.50 is excellent, as is his direct3d 7 v1.40.
TR64 is available on www.emulation64.com in the download section.
Rice's is also there, as well as in the 1964 message board.
Jabo's are availabe on pj64.net, you have to download both PJ64 v1.50 and 1.40 to get the plugins you'll need.
I always had the best results from Jabo's d3d 7 or 6 on my good 'ol GeForce 2 Ultra. It does a while ago and I'm looking for a replacement. Excellent card.