SL is an interesting concept. I did try it awhile back, and it was sooooo boooorrrriiinnngggg...

Seriously, The Sims is much cooler, imho. You can do "Dressup" and don't have to bored to death.

Or you want to interact with people in real without having to wait to forever for a page to load like in SL, then try GaiaOnline.com.  Right now, I am digging Gaia. ^^