Alright I got myself a blackberry 7105t about a week ago... and I'm loving it... but someone I know was like... dude you've got nothing on it... check out blackberry forums so you can get tips and other things to pimp your blackberry so now I'm here.... anyway... I'm not gonna find anything by typing away... So I'm gonna go read the forums... LATER
Though I have'nt been using the BB for as long as many others who've replied to this post I will second that it is addictive. I am addicted to the BB messenger too. I use my BB's e-mail capabilities a lot as I have to use Lotus Notes at work.
This forum is a wonderful & helpful. It's a great community to be amongst. I'd recommend that you visit the tips & tricks page of Mark Rejhon (did I make a spell error?). Also the BB FAQ page is great. Not to mention I've seen all topics related to BB discussed on the forum. You'll find this a wonderful resource for trouble shooting.
I love my BlackBerry/CrackBerry and will fight anyone who says different.