Only free for today, "Process Lasso"!
This is a very handy little process prioritiser for Windows, it sure helped me iron out the spikes on my ageing laptop whenever my antitrust kicked in.
Here's the link...
http://www.giveawayoftheday.com/process-lasso/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+giveawayoftheday%2Ffeed+%28Giveaway+of+the+Day%29