We have had a DS230 since April of 08 and love it but we found the exact same issue, lack of storage, with our 230, but we manage. This afternoon I will measure the storage under the bed, the dimensions of the ent. cabinet and look to see what is involved with removing the cabinets in the front room.
One modification I have made is adding a Curt RV Bumper Trailer Hitch Receiver. See... http://www.etrailer.com/pc-UMH~E-100.htm
It slides onto the rear bumper and bolts into place and allows you to mount a cargo carrier/bike rack or even tow a small trailer behind the 230. We use ours for a bike rack and it works great.