I have felt your pain(s?)...
I bought a used HDMI console on eBay for $65 that had the mods done already. It worked for a while, then RRoD'd on me. I fixed it. It worked for another while, then RRoD'd again. I fixed it, again. Guess what? The damn thing froze up on me the other day. I haven't even turned it on to see if it's the RRoD. I'm just going to buy a brand new console with a warranty. I need more controllers anyways...
Anybody need a new CD drive for their 360?