Total n00b needing some guidance.

[BooDaddy]

Hi all, I just found this site, and WOW!!! Lots of awesome info. I will be honest, I am in an information overload.

I have a Verizon XV6700 and I am wanting to build my own rom. Heres my concerns:

1. Is it possible that I can flash my own rom and ext rom, and if I ever needed to send my phone in for warranty can I flash it back to original OEM rom and ext rom?

2. I like using Verizons Wireless Web Sync. Can I still use this service with my own kitchen made rom?

3. Are there any "verizon" features that I wouldnt get by using my own kitchen cooked rom?

and lastly could you guys give me some direction as to where I can find a good guide for total n00bs that explain the whole process?

Thanks!