I'm trying to build the ultimate After Effects machine, but I have a very limited budget.  Any suggestions regarding a motherboard that has AGP 8x (I have my eyes an an Nvidia Quadro4 XGL), and supports dual 3GHz P4's (hyperthreading will be very useful for Maya and AE rendering work).  In particular, if you know of any that are based on a Serverworks chipset, I would greatly appreciate it.  Many thanks in advance.