The following
eBay seller has a few MMC Replay's and RR-Net's
available for the Commodore 64.
http://stores.ebay.com/Reds-Retro-Computing-Extravaganza
I've not dealt with this seller before, but I just finished ordering
mine from him, so should hopefully have it sometime next week.
He is a very reputable seller and I can personally vouch for him.
I noticed he's a moderator on
amiga.org, so wasn't too concerned.
I have an MMC64 and it's a really nice unit.
I'm looking at an MMC Replay
myself.
The MMC Replay looks like a serious upgrade, and in a lot of ways I'm glad
I'd not previously purchased the MMC64 or Retro Replay. I don't manage to
play with my C64 much anyway, so what little time I've had the past few
years has been spent on other upgrades that I've built myself. This will
save me the time and money of trying to build a 1541-III, at least for the
time being (the 1541-III seems to be a better solution).
Zane