<<As for MSI, while they're usually good, they have been known to fail inexplicably after a few months of use.>>
Ok, why don't do a poll and see how many post-K7T Pro2A MSI owners have had their boards fail on them?
<<I don't really care about overclocking, what i'm looking for is something that will give me no hastles and a manufacturer that has good support. Is the MSI significantly faster than the ECS?>>
The KT266A chipset is inherently faster than ECS's SiS735 chipset. So it's safe to say that the MSI is faster than the ECS, though not by a huge margin. Personally I've been happy with the way MSI has supported their customers, BIOS updates has always been there, and they're very easy to setup. ECS's reliability is very questionable, I wouldn't venture into that route.