CDMA Touch Pro Questions (many)

[xParaholic]

Okay, here goes. I'm totally 100% new to ALL of this, so bear with me.

I have a HTC Touch Pro on Bell Mobility, living in Newfoundland, Canada. I'm wondering a few things about my phone. I love it, but there's a couple issues I have.

1. Battery life. I know, you can flash new ROMs and radios but I'm not sure if I want to do either, being that they void the warrenty (I'm sure ROMs do, but do radios? & if so, I can't flash back to my Bell radio so I would not be doing that .. ) I'm a little hesitant of doing so. Right now my dbm levels are between -94 & -100 and I'm getting about 10-16 hours out of my battery before it hits the notification point. I'm not comfortable yet with registry edits, but maybe I would be if I got them thoroughly explained to me .. (also, do registry edits void your warrenty as well?)

& 2. Laggy-ness. I know, same solution, but same problem. Well .. I guess that I should've just had #1 .. oh well.

Help would be GREATLYGREATLYGREATLY appreciated!