I totally love the heated bed provided by Jason Wu on eBay: http://stores.ebay.com/3dphk/%C2%A0
http://www.ebay.com/itm/like/161157442118?lpid=82
http://www.ebay.com/itm/like/151272164070?lpid=82
I did completely wreck and burn out my RAMPS controller board, but luckily had a pro soldering friend rescue the board and solder in the correct resistor. The 24 volt power supply works well... there were a few items as far as how the screws go in and how the aluminum bed sits and I'll post details, pictures, howtos and how I handled the issues ASAP... I'm using the glass with either 3m blue tape for PLA or with light heat (70 Celsius) and PET tape... or 120 Celsius with PET tape and 230 Celsius for ABS (with some light plastic sheets covering making a fake heat chamber). I gave up on Kapton tape as it's too much work to apply. Thick PET tape applies easy by just spraying some water on the aluminum first and a squeegee.
I'm working on an online store for Jason, hopefully he'll have the patience to wait for it's completion:
http://dev-3dpmod.gotpantheon.com