Give the tutorials a try for yourself:
The beginner tutorial start here:
The intermediate tutorial start here:
Even if you've been making content for SL and consider yourself a pro, I do recommend you check out at least the intermediate tutorial. Making content for SL there are some important aspects to CG modelling that you're not likely to be exposed to, such as proper UV unwrapping.
If you believe you know all there is to modelling, at the very least I'd encourage SL users to check out this part of the tutorial, dealing with UV unwrapping:
I hope all of this helps and happy SLing!