Well our fave place to stay just now is Courtyard by Marriott LBV. on Palm Parkway. It is possible to walk to DTD but only if you enjoy walking.
Put in sample dates of 1-8th Oct. £29.15 incl tax/night with Alpharooms.com, I use them often they do great rates.
If you have an rpoints.com account they give 3.5% cashback for Alpahrooms bringing rate down to £28.13.
Lots of others on Alpha or do a search on Moneysupermarket.com, in travel section, a very good search engine.