people do this all the time in Columbus, Ohio. im from ohio, and people just park their cars out in front of their houses and hop onto their networks. sometimes they monitor the connection and get all their personal info.
I have a system that meets your requirements.
AMD Athlon XP 2200+
1.8 GHz AMD
1 Gig of Ram
Plug and Play NVIDIA GeForce 6800 GT BFG Overclocked 128MB
Belkin Wireless Desktop PCI Network Card 802.11g 54Mbps
Plextor CD-RW drive