PhotoshopUserTV is great*, as is just about everything KelbyMedia does. Have a look at KelbyTraining, some great classes.
A great free alternative, however is Phlearn. A huge bank of £FREE video tutorials up there produced to a professional standard.
Hope this helps,
Sid
*Btw, PhotoshopUserTV is free, just look for it on YouTube. Most other things KelbyMedia does you have to pay for.