The versions in question that are vulnerable are versions 1.0.0 - 1.0.1f (they fixed it in 1.0.1g). So if you're running Debian Squeeze, or something older that is using 0.9.8* then you're safe from heartbleed.
I am running something newer, and have already patched my stuff, fortunately I only had a few servers that needed it. Reissuing SSL keys is annoying as well, but I did that.
slaapliedje