Until today, I have been one of the last few remaining 1.5ers by virtue of wanting to read up on all of this to get it right, being busy with other things, forgetting half of what I read here and then reviewing, etc. Viciously unproductive cycle!
Read that I could do this with the OTA 2.1 update, so I FINALLY took advantage of it. Then did the One-Click root, then had to flash the Engtools3.zip. All no problem. For you folks who want to root, read, review, and then jump. You'll be glad you did, and you'll feel like you can accomplish more!