user-friendly linux distro?

I'm sick and tired of fixing my mom's computer problems because she uses Windows ME which crashes on a whim and gets adware/trojans every other day and blames me for it.

All she does is e-mail and play Yahoo .swf games, so, aside from the fact that Macromedia doesn't seem to want to release a Linux-based .swf plugin that's up-to-date and supports audio, I still am going to put Linux on her computer and tell her to fend for herself.

I use Slackware, but that's for computer literate people.  What other distros out there have made Linux more idiot-friendly so I never have to be bothered again?

>>2

Her computer also has a wireless network card... are those distros those distros set up to "Just Work" with all sorts of hardware configurations or will it require some config file digging or module compiling like with Slackware?