You've got a couple of options.....
1. Wait for the release of a method to alter your NAND (that holds the info to cripple HD functions - ie non trusted data crippling), this apparently will be out on or around the 20th. This involves dumping your NAND (no need for the JTAG wiring etc), altering it in a hex editor then reflashing the altered now pre-ban NAND back to your 360. Still no Live, but you can properly use the 360 offline (going back on Live would equal NAND banning again and you'd have to reflash it). See
this thread on how to do the soldering/dumping, and the Free60.org website fo checking/verification. You'll still need to wait for the how-to on hex editing your NAND though.
2. Do an X-clamp replacement on your borking unbanned 360 to stop the RLOD error. Take the DVD drive from your banned 360. Dump the key (so you can restore it at a later date - V. important). Take the malfunctioning DVD drive from your RLOD console, and dump the key fom this. If they're both the same type of drive, insert the key from your malfunctioning DVD drive into your working one, pop it in th now fixed RLOD 360 and you're away
If the drives are different, simply spoof and insert key on your working drive and pop into your fixed 360.
Thanks man.