Great, just destroyed my 450D Side panel. What do I do?

Just as topic says. I took the side panel off to put in a PCI-E Wireless card and then before I put the panel back on I wanted to make sure it was working. Sat down in my computer chair then CRUNCH! Destroyed my side panel.



What's messed up is that I can't buy a new one from corsair's website, or ebay. What do I do????!!!!????! :(