Let the hive mind of Engadget get that for you.
"I'm pretty much a complete noob when it comes to camera stuff. My wife loves to take pictures, though. So much so that she literally wore out her first point and shoot camera, and the Kodak Z712 I bought for her less than two years ago is starting to act up as well. To compound the matter, we are expecting our first born sometime next year. I fear the Kodak just isn't going to cut it any longer. What would be the best starter DSLR to get? She hates missing photo opportunities due to camera 'lag' so speed would definitely be at the top of the list. Photo quality and features would be next. Price should be no more than $800. I'm not interested in video capabilities."
So I installed a splitter and another internal antenna - now I have 2-5 bars all over the house.
I can use GPRS but as others said when I'm at home my phones are on WiFi for data.
Of course it cost near £200 for the hardware, my time for the install and it's costing me 8W an hour for power it but there's no cost to pay 02 and I could also use Vodafone who use the same bands in the UK so I'm not tied to one provider. As there are no available 3G masts near me nor any plans to upgrade the ones there are I figure it's worth the cost (I work at home) YMMV.