Vlad - I think If your going to use it for your business, you should definetly try to pickup DreamDesign.com ..... for a measily 10k.... ha, j/k.
I think its a great name, Im suprised more people havnt jumped on this appraisal. The name was regged in 2004, so its only got 2 years under its belt, however all the other major TLD's are registered.
I would estimate the value in the mid XXX range. But I think it is exceptionally brandable, easy to remember, and for what you suggest would be a great name. I think you made a wise purchase, I just hope you didnt pay too much!