Some routers let you have an unsecured or lower-security guest network. That's what I did at my parents house. Connected my computer to the WPA2 main network, and the DS to the unsecured network (unless I was buying DSiWare with a credit card - then I connected to WPA2).
Now I have Verizon, and the FiOS routers only support WEP, because, well, screw us, I guess. It's a nonissue, though. If you are on an https:// site, your info being sent is encrypted. Just about any financial site/reputable email client has this security, so they're not going to steal your passwords/bank info/read your emails - though they can check your facebook - that is unsecure..
Edited on by SpentAllMyTokens
I am way too lazy to think of something clever.
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