Well, before you go jumping to replace the cranks, are you sure they are both broken? Shops can often order you just one arm, or maybe you just need a new ring. It's hard to say with the minimal information you gave us. Furthermore, if you did crash badly enough to destroy both of your cranks, I would check everything else on the bike really really carefully. Like the frame, wheels, bottom bracket, etc.
Also, I guess you are embarassed to admit what you did to your bike, but it is a little annoying when someone asks for advice but doesn't want to give you enough information so that you can actually help them. Sorry if it sounds like I'm getting on your case, but I would genuinely like to help you.