Hey everybody I know this is on the borderline of being off topic but I found a custom brush plugin for Paint.NET that lets you use Photoshop brushes here if you prefer it to GIMP like I do. ;)
I can't really understand what you are saying, but I used to run it on a quad-core CPU with 6gb of RAM and it slowed down my computer immensely, but my HD was failing so that may explain a bit.
....But lets not let this get any more off-topic.