I have the Samsung Galaxy S i9000GT (european version)with SpeedMod Kernel and Voodoo Lagfix.
I had a HTC Hero before that (EU version ofcourse).
If you would need any help with either of those phones, I can help as ive gathered up alot of knowledge on them. Especially the galaxy s ^^
I got the Att Galaxy s Captivate... IMO the lagfix doesnt do much but thats just me.. I love it though.. I wish the gps was good. Im running cognition beta 6.. Im waiting for AOSP though.