@darknior Haha....
I actually do a few things in paint still myself. If I have to move an image slightly to get rid of a bad edge or resize it slightly that's the quickest way for me.
I actually recommend Paint.NET though. It was real easy for me to pick up and there's a huge fan community that makes a lot of helpful extensions. I've used some of these extensions for altering the perspective to make really bad angled box and cart shots look like they were taken directly head on.
Made a HUGE difference when I could get a 1500x2100 image off of ebay and change the perspective to have an amazing HQ image instead of using some 300x425 image with a beat up box and a sticker on it that I found on some random gamer site.