So not to brag, but ideally help, I was in the same boats as a lot of you where NOTHING worked.
So tonight I bit the bullet, ran over to walmart and purchased the $11 2g pny card came home and suprise, it didn't work. Then just like on my other 1g, 2g, 16g cards I tried another USB port and it worked perfectly with the new card. The exact method that worked was the last method mentioned in the 10 minute root video where you hold down vol-down and power over and over. I was able to get back into adb recovery twice after only 2-3 reboots each time. Superuser.apk works, removed peeps, cityid, rss feed, etc. Installed SetCPU and autostarts, all appears to be running stable and without any problems. Oddly enough, and maybe someone else knows why, I used root explorer to delete cityid, etc on the first try, after reboot all of it appeared back again. Only way to perm remove it was from adb recovery.
Hardware wise:
hboot 0.77.0000
march 23 2010, 19:36:22
Windows 7, HTC Sync installed.