Thanks for the info guys.
I've had the latest 4in1's since I installed win2k a couple weeks ago, so that's solved.
I have my Rhythmic edge in PCI #4 (2nd from bottom), which shares an IRQ with my NIC in slot #6, but they're working fine together.
I'd prefer to leave some space under the AGP card anyhow (preparing for a big passive sink.
Thanks again