My recommendation quoted and edited for clarity from two of my posts on the Your Pedalboard thread:
Line 6 Relay G30 Digital Wireless. So close to the sound of a good cable that I can hardly tell the difference. I can't recommend these digital wireless systems enough. Compared to analog wireless systems, the difference is night and day in favour of digital. The lack of the companding as found in analog systems, plus good A/D and D/A converters make all the difference.
Another big plus of the Line 6 G30 or G50, is that they work on 9V negative center, the same as regular pedals and it only needs 200mA so it will work off the common pedal power supplies like the Voodoo Labs Pedal Power 2, Dunlop DC Brick, T-Rex Fueltank or my BBE Supacharger. Most other wireless units use their own wall warts. This is possibly the only bit of Line 6 gear besides the DL4 and M9 I've ever liked and it's a real winner IMO.
http://line6.com/guitar-wireless/
That help?