Hi Guys...Long time no see!
I see some familiar IDs from insanely mac. 'Hope you all are having a wonderful hackin summer!

Ok, I used tonymacx86's "Xmove" for straight update from snow leopard 10.6.8!

http://tonymacx86.blogspot.com/2011/...-107-lion.html

It was smooth and easy ride to Lion as they say. Installing Lion was just like updating another version of SL. You don't even need a USB stick or anything.
Just follow above tonymacx86 thread, you'll be OK.

One thing, I copied my "Extra" Folder and backed up "AppleHDA.kext"
After update to Lion, if not booting as expected, I used "-v -f -x" for booting.
Then, changed my Extra folder.

Good Luck!