I have been very impressed with the reviews I have seen of the 8HKA+'s online. I do not have one of these, but I have had many Epox boards and find them to be of very high quality and very much worth every penny. And as for the KT266A chipset, I think it is going to be *the* answer for Athlon DDR systems, this is a very exciting time.
I say go for it! I'll probably be joining you in a few months with a purchase of my own 8KHA+, and hopefully by then the supply might be a bit better. 🙂