reply to TA63
Re: What is the best way/course to learn photoshop? You already have some good suggestions above, but there are almost too many tutorials for PS on the web. When you're starting out it's hard to know which ones are good and which aren't, or if some of them are out of date and make you do stuff the hard way.
Try to find recent tutorials for things similar to what you want to do and play with them. And avoid the temptation to buy addons (an awful lot of people sell them) or collect actions, at least till you have a better feel for your needs. He who dies with the most layers can die broke.
Play and have fun with it. PS is a wonderful program, and you'll do fine.