I went out and rode an '08 Epic Comp and an '09 Stumpjumper at lunch, gonna hit up the Santa Cruz dealer at some point. Both very smooth bikes with the Fox shocks, even with regular shoes on I was able to go over some pretty tough stuff, which is why I like the rear suspensions; your tire spends more time on the ground than it does bouncing around. For '09 Specialized changed the rear suspension design a bit, but since the two bikes I rode are intended for different applications anyway I figured it was a tough comparison. I feel that the Stumpy has more travel than I need and I would be losing performance vs. the Epic on stuff that I do; climbing, long distance pedaling, etc.
Another thing is Shimano vs. SRAM shifting - I've grown up on Shimano so I'm used to the "trigger finger" 2:1 shifting while SRAM has the "double-thumb" 1:1 shifting. I don't really know which one I like better, I guess it's just a matter of preference. They both work.
Found out if I want to upgrade my BB to Octalink on my Fisher, I would have to do crankset too (no surprise), it's probably time anyway, after 8 years of poor maintenance schedule and attacking a lot of the Front Range trails in a hard and determined fashion in all kinds of weather...
Also no provisions for disc mount on rear, so I'll probably stay v-brake on both ends, just upgrade my brake and shifter set so everything is tight again.