Any phone will drain its battery more rapidly when Bluetooth is switched on. I toggle Bluetooth off on my phone when I don't need it, and that way the battery charge lasts longer.

Unfortunately, because I'm in the car so much, Bluetooth is a bit of a must - even if I don't actually use it, I need to know if somebody has been trying to call me (to offer even more work). My present Nokia was a bit of an upgrade and the battery doesn't last nearly as long as the old one did when Bluetoothed. /Sigh

if you want to use email, web and mms on your blackberry you do need a blackberry package. however alot of people arent aware that instead of a lengthy and expensive contract, there are 'sim only' plans available that inclue the blackberry package, or that you can get it added to.

because these contacts are only 30 days minimum term and dont include a phone, they are much cheaper, and might be a good option for you because of the short term of them and they are reasonably priced. hope this helps. :)

It can be done with a Blackberry on Vodafone
I was on a sim only deal with vodafone on a rolling month contract £15.00 300 Minutes etc
I bought my own Storm on ebay and then wanted Blackberry services email web etc - vodafone wouldn't do it so requested my pack code and they rang me back next day offered me twice the minutes and full Blackberry service for £20 a month on my rolling contract - bargin!Best phone & package I've had.