In my mind, the nForce chipset has been one of the biggest hype, no delivery chipsets since the i820. Performance was reasonable, but even with the new technologies that nVidia has used, it still falls behind a plain-jane VIA KT266A board.
As for the MSI K7N420 Pro, I think that more thought of what goes where needs to be considered rather than trying to make it look good with large heatsinks and red PCB.
Onboard Dolby 5.1 sound
Using AMD HyperTransport bridge link
Expensive for an integrated solution
Wasted PCB space between AGP and PCI
Rating - 7.5/10