You will need to buy an inverter which will plug into your cigarette lighter and the laptop plugs into that as it delivers 110v. I run a Gateway 350WVN which has a 40 gig HD, 2.8 GHz Pentium 4 with Hyper-Thread technology, 802.11g Wireless, 512k Ram, CD/DVD Burner and a nice color screen. I have had it one year and it has been flawless. I think Gateway has been doing well with their PC's. My only complaint is that they closed ALL of the nationwide retail outlets/service centers 2 weeks after I bought mine. That was part of my reason for buying a Gateway is that they had stores scattered all over and one only 15 minutes from home. Fortunately, service has been a non-issue.
That wireless internet is expensive but maybe your able to absorb the cost in your business. Verizon wanted an additional $70 a month for connectivity and there were additional costs involved but I didn't bother to check further as at least $70 on top of a $250/mos cell service was more than I wanted to tangle with.
Get the computer before you sign on for the wireless cell internet set up and see what's out there. In my area I can't drive a block without picking up someone's unsecured wireless network....dead serious. I am on the 'net all the time while on the road by bootlegging an errant signal. Some cities are even installing them them on street lights so they are available. It depends on how big of a city you're in I suppose.
__________________
______________________________
|