My 20G DMS is running out of space and I am planning to get an additional cartridge. I have search the web and only know Phatnoise.com is selling them at USD199 (40G) USD288(80G) and USD399 (120G).

Is there a cheaper source?

I haven't done this yet but there are downsides (such as warranty..etc) and I'm not entirely sure if its working 100% yet but its a nice option.

I don't think you can buy the DMS drives anywhere else right now.

now it just take sometime and the cost of a laptop drive of your choosing.

phathack.com