Do I trust it nForce? No, not yet. However, I don't have great confidence in VIA either. Yep, nForce drivers are built for XP/2k first, and I've also heard they don't like 98/ME. That's cool with me, I won't be running those old craptastic OS's on any new machine that's for certain.
I'm just now starting to order parts for a new machine. It will be based on the nForce chipset, the one with no integrated video. The onboard sound is good quality, and has the lowest CPU utilization of any sound card/chip I've researched... slightly lower even than the Audigy. It has onboard LAN which I want, and it has no extra crap that I don't want, like RAID controllers or Firewire that add expense and suck up IRQ's but are otherwise useless to me.
nForce is not quite as fast as the new VIA 333 boards, and it's not as friendly for overclocking. However, it seems to fit my needs rather well, and it's what I'm planning on building on this summer. It also seems that it will be likely that nVidia graphics cards and drivers would be designed to work well with their chipset, and I'm hoping will be less likely to encounter compatibility problems.