So I read all the little guides about how to make sure your SSD actually is performing like an SSD -- choose the SSD as your boot drive, reset the PRAM, etc. Well...some time ago (no idea why I waited so long to post!) I took the HDD out of my MacBook and replaced it with an SSD and did a fresh install of Lion on the thing. Didn't boot from any external drives or anything -- just straight from the Lion DVD. But I noticed zero speedup whatsoever. Repaired permissions, reset the the PRAM, deleted unnecessary language files, etc., no speed difference. Da heck???