If your laptop's muscular enough, another way to accomplish this is to run Linux+VMware and run Win32 in VMware (you can go the other way, too, but I like having my base system being Linux).
VMware lets you set up a bridging virual NIC that let's your Windows installation talk over your 'net connection - my e-mail's still in Eudora, for instance, so this is how I get my mail on the road. It's also handy for testing MSIE against a website you're developing - by setting up a second non-bridging virutal NIC Windows running in VMware can talk to the host Linux system's ACS installation.
