Where do I start?

I bought my Touch in July 08. The only customizing I really did at that time was upgrading the ROM to the newest (at the time) Sprint ROM. I also added spbmobile (version 2).

I lost the phone for a few months (my toddler somehow managed to wedge it in the couch to where I couldn't find it) but I now have it back and it's like having a new phone!

I'd like to do something different but I'm not sure where to start. I'm reasonably adept at most technical things (ie, if I break it I can usually fix it) I'm just not sure what my options are and where to start.

Thanks all for any help/suggestions!

Heather