Okay I got my P4B533-V up and running finally.
Right now I'm I'm running my 1.6A at 160 FSB with the 4:5 Memory Divider which puts me at DDR 400. Woohoo! It's rock solid at this speed too. Ran Prime 95 for about 12 hours.
My Vcore is set to 1.700 in the bios but fluctuates between 1.664 and 1.78 in ASUS PC Probe. My other voltage rails are solid right where they should be: 12.032, 4.999, and 3.296. I love this Antec True 550!

I have a question about this PS though can anyone else that has one tell what the RPM on their fan is? Mine runs at right around 1600 RPM, does that seem slow for a PS?
My memory (Samsung DDR 2700 from Newegg) is set to 2.5/3/3/6 at 2.65 Volts. Sandra benchmarks it at 3050/3048. Is there a benchmarking tool that will actually show you what the DDR speed is? And also the PCI/AGP MHz rating?
I think my temps are a bit high though. I run at 45 when idling and up to 59 in Prime 95, again with ASUS PC Probe. Should I be worried about those at all? I'm using the ALPHA cooler with AS3 and a 2900 RPM Sunon Fan. I can't believe how quiet this system runs compared to my old PIII setup.
3DMark 2001 SE Build 330 reports me at: 11467 with my Ti4400 at default speeds. I have my Aperture set to 128MB
THUGS: I also have the VisionTek Ti4400 and I get the exact same overclock as you. Anything higher than 295/645 it freezes up and reboots, but I backed mine down to 290/640 because it looked like I was getting a few artifacts here and there. At 295/645 I score 12334 and at 290/640 I get 12188.
I also have a BG7 here but I haven't tried it yet. I don't think I'm going to, I'm pretty happy with this board. I plan on getting an RMA for the Abit tomorrow.
Thanks for all the info everyone has posted on this thread and others, it was a great help!