Will Someone just leave him a guide to the wireless thing!
You said you don't have wireless in your house? You can set up a Computer-To-Computer link using the same technology.
I'm gonna go really simple on this because I don't know how "in-the-know" you are, so don't take offense, plus if this is searched it'll be a nice guide for someone I hope
- Click the AirPort button on the MenuBar (Has your WiFi strength displayed on it, and It's beside the bluetooth one)
- Click Create Network
- Name Your Network with something like "MacBook Wifi Link"
- Leave the Channel at Automatic
- I would suggest you not require a password, if it's only going to be a temporary link, it's just a hassle, though, you can never be too safe

- On the other MacBook, your network should come up on-screen, if not, make sure WiFi is on (Using the button mentioned in Step 1, and selecting "Turn AirPort On")
- Select the Network named "MacBook Wifi Link" (Enter Password if you set one up in Step 5.
- Join It
- Your MacBooks should show up in each others' finders.
I'm pretty sure this is right, someone tell me if not and I'll edit it.