I seem to be having a bit of a heat issue with my recently purchased 560Ti.

On idle it runs between 30 and 40 degrees. While gaming it goes up to 70 and even 90 degrees (depending on what I'm playing)

Now while it doesn't cause my system to crash it can surely not be healthy for the GPU to be running at those temps.

I have a fan on the lid and 2 fans at the back but had to resort to opening the case now to let the heat out.

Anybody know of a cheap cooling solution?