I'm not sure I'm liking it either, but one possible result could be that AMD and Intel will collaborate on bus standards and cross-license with each other, so that graphics cards will remain compatible with all mainboards.
I guess I'm trying to look for the silver lining, since there are some dark possibilities as well.
Intel Q9450 @3.2GHz, Gigabyte GA EP45-UD3P, 4 x 2GB G.Skill @4-4-4-12
Antec P160SW case (modded), Xigmatek 750w PSU
3x 500GB (RAID-5), , OptiArc 7200S, ASUS E818A3T
Creative X-Fi XtremeGamer, Hauppauge HVR-1800, Radeon 4890