Tecie me lol i just love tinkering and well theres a 50/50 chance ill wreck me device (accidental damage claim on the insurance in that case)There is a blanked sim card slot and an internal pcie slot, there is a 3g modem which has inbuilt sim card slot which would be easier but cost about 100 pounds so unless i find a cheap one that will be a noshow.
Im getting 3gb for a fiver on the three network but have a phone with them, i do know for uk based peeps that if you have bt broadband option 2 3 or 4 then beginning of next year as part of your deal you get a free usb modem with 1gb included for no extra cost with network being supplied by vodafone (7.2mbps max)