Yes, I agree. Deal with gimp and other free image editing software.. Photoshop is covered by far on tons of other sites.. like thousands..
You want some GIMP tutorials ... here are over 4,000,000 (LOL)http://www.google.co.uk/search?q=GIMP%20tutorials
Relating to the learning section I think there are endless tutorials out there for almost everything - esp. Photoshop. We did discuss in another thread bringing together a tutorial list for PhotoShop (and other apps if people want them) but rather than just pointing to a site with tutorials collect related (and tested) tutorials in related areas of interest (eg. Touching up skin blemishes etc) which I think would be a good idea. I wouldn't mind editing such a list once my exams are over at the end of October.
If you want assignments and constructive criticism try www.lvsonline.com
who offer really cheap taught courses (~$25 for the first course, includes $5 registration, and $20 for subsequent courses) in a lot of graphics packages amongst other things.
They are friendly courses taken online and you submit your assignments online but you do get to see what other students are up to and get personal feedback from a tutor. The tutors I encountered were really good and helpful.