new user -- hosted DES ?
 

Thanks in advance

I've been researching MDS/BES hosting services. Forgive me, I'm a long time palm user (now using Treo 700P with Microsoft Exchange ActiveSync for push email/contacts). I'm looking for a much more reliable device which can push with my Microsoft Exchange server as well as with a couple of pop accounts.

I work for a small company with a Microsoft Exchange server. We do not have a BES. I was therefore looking into the hosted BEs options. But from what I can tell, I have to also use their Exchange server as well. Is there a way to use my current in-house MS Exchange server with a hosted BES? If not, how would I make the connection between my MS Exchange server and a hosted MS Exchange server/BES server? Also -- would I be able to check my email on my MS Exchange server with a Blackberry if I chose not to set up with a hosted BES server?

Thanks again -- I'm trying hard to get myself up to speed with BB technology

BTW -- is there any difference in setup if I chose Cingular vs Verizon vs T-Mobile?