Is the OTA going to take superuser access again?
That considered, the best option would be to .sbf to 2.3.15 and then take the OTA to 2.3.340.
If you get bootloader errors when .sbf'ing to 2.3.15.. then the 2.3.320 .sbf should work, then just apply the patches.
And yes, the .sbf will wipe root. the z4root application seems to be the new easy way to get root back. Since it was pulled from the market, I think the best way to get it, is to just search xda-developers.com forums for the thread on it.. you'll find it. Just toss it to your SDCard, and install it after the .sbf.
Thanks for your help!
In fact.. when you update, it is advised to delete all of your old nandroid backups... they can actually soft-brick you (cause you to have to .sbf again).
The old versions, stock 2.1 (don't know system version), 2.3.9, 2.3.13, 2.3.15, they were all compaible... so you could be on 2.1, and use ROMs, etc. for 2.3.15. But nothing from before 2.3.320 works reliably on 2.3.340.
Okay cool. I will delete them as soon as the access is back.
I am only finding the .sbf with this in the notes "First note: If you are running stock non-rooted or rooted system build 2.3.15, then you can apply this update no problem. You will lose root access, but you can get that back with z4root. To find out which system build, go to Settings>About Phone. If you have modified any of the bloatware files though, you will be out of luck. You need to have a clean system file."
This makes me think that I shouldn't be using this particular one, correct? I have the direct link, but I know that droidforums do not want links to .sbf files posted up...