Only comment i might have, is that if you are having issues getting RSDLite to recognize your phone or flash it, if you have access to linux use sbf_flash. It "just works" for flashing a phone. i plug it in and run the command. That simple.
I am going to go from the GB leak to GB OTA rooted tonight.
I went from the unrooted gingerbread to the rooted gingerbread using this guide. Took me a few times though. I kept getting stuck in the red logo. I finally tried formatting the SD card, went through the whole procedure again, and it worked. Rooted Gingerbread. Great thread.
I was just about to start a new thread asking for help as all of the part 1 files I got from MDW would not work on my phone. I've sbf'd probably 20 time sin the last 24 hours trying every trick I could think of to get this to work.
I downloaded the files from that link and it seems to be working just fine now. I'm on step 2 now so we'll see...
I must say this is a good guide....could have used a lil more detail for polished noobs such as myself but I got thru it. Anyone who hasnt used this method take note that you need to hold down the camera button and volume not the power and home lol. And as far as z4root...if its steady spinning pull the battery...matter of fact pull the battery before you install z4.