This one has been covered quite a few times, you could do a search on this forum and there will be some answers turn up.
But i have found the best value for money is DIGITAL PHOTO at £4.99, with the mag you receive a good tutorial disc, easy to follow for Photoshop users and also an extra mag again with tutorials . Most months there is an offer on for a free gift when subscribing.
I am far from a pro, and find the tutorials so easy to follow, yes i know its mainly on Photoshop, but am sure you will want some kind of decent soft ware with your camera.try it i am sure you will find it both interesting and helpful.
There are so many out there and i think i have tried many of them, its still the above for me...
There is always the option of placing a question on here, there is always some kind sole to help...
good luck