So I rooted my Droid last night, thank you for all the great info here. I now have ROM Manager installed and have done a complete backup. I just now downloaded a ROM and after that was complete it is asking me two questions: ROM Pre-Installation ... Do you want to 1) Backup existing ROM or 2) Wipe data and cache. Here's my questions ... 1) Can I download this ROM and not install it right now? and 2) If I do install it, is it very simple or even possible, to go back and forth between my stock ROM and the downloaded one via just a reboot? Thanks!