If you're just looking for temperatures, Everest will suffice. Everest has 5,660 kb in RAM, and Afterburner has 8,380 kb. I mean, who cares about 3 MB (and it's probably increased because I have custom fan control, stupid Fermi/space heaters), but it's not like Everest is going to hurt performance while you're waiting for an Afterburner plugin.
I would like to request that the "Hotkey plugin - done by uNki" be given a new download link or a copy forwarded to me (dondon AT getlegitanddip DOT com). I would like to use this plugin, but the download link is dead. I'd gladly provide a permanent link which will never go down.
Got another idea for a plugin. I would like to see a plugin that can check an IRC client (mIRC, Xchat, other popular ones I guess) for the latest private messages (queries). I see there's a textfile reading program that reads the last lines of a text file, but you'd have to know who was PMing you, or make some sort of script to generate a list of files to read from based off people in a given channel. That's kind of...inefficient? I bet it's possible to display messages from incoming private messages. it would be really useful when you're fullscreen in a game or whatever and don't want to alt tab just to check messages. I am focusing on private messages because that textfile plugin can easily handle a predefined channel.