I picked up the first 2 issues of the Renderosity magazine at half priced books, they are really cool and useful.
I think it is worth subscribing to.
I subscribed when I was able to attend Siggraph. I really like the magazine, it has some very nice tips and tricks and how tos for various programs. In one copy I believe you will find Kruzr’s First Love rendering. Anyway, I think it is a pretty good magazine too! A little pricy, but good!