I found a site that is selling $59 Atrix Lapdocks. This was great for me since I missed the clearance sale that VZ had a while back. I got my lapdock in last night, did the Atrix-to-Razr lapdock conversion (took 10 minutes) and i've been using ever since. Note: it says on the box it has the UK keyboard - the only difference I notice is the #3 key has a UK$ sign on the key. I wasn't about to cough up the dough for a Lapdock 500 so I couldn't be happier.
AT&T Motorola 11.6" Lapdock for AT&T Motorola ATRIX 4G w/ 1GB RAM, 1GHz Dual-Core Processor & Firefox Browser!
Hopefully someone will find this useful!