Wireless Network Nightmare

So, this temporary housing we're living in has a wireless network set up for us to use free of charge. Great! but I don't have a wireless card. I went to Best Buy and picked one out, and yes I checked to see if the box said it was compatible with windows Vista. After a call to customer service I found out it was only compatible with 32 bit Vista, not the 64 bit version I have, and their company (Dynex) does not make any product that is.
A quick Google search seems to suggest that there are very few wireless network adapters that are compatible, and so I call HP who sold me this version of Vista thinking the card that was an option when I ordered my computer must be a good one. The first salesperson assures me that they can't sell me the card separate from the computer, but any Linksys product will work. I don't trust him for a second, and a customer review on Amazon confirms my suspicion. Foolishly, I call back HP to ask the model number of the one they sell, and a second salesperson tells me very condescendingly that I can't trust customer reviews, and they are all compatible.
Another trip to Best Buy, where I ask not one, but two salespeople who both assure me that I will just need to download a driver.
After a wild goose chase in the Linksys website I talk to a customer service rep on live chat (very nice and helpful) who says there is no driver, but there is one product they make that will work. Naturally it's twice as expensive as the one I originally bought, but worth it because I now have internet again, and feel like a whole person once more.

If anyone needs a wireless USB network adapter that's compatible with 64 bit Vista. Linksys WUSB600N is it.