You will want to look for hotels in the Maingate West area (most of the hotels are clustered along 192). Many of these are what I would consider very inexpensive. Not sure your exact dates, but just a quick search of hotels Expedia considers Maingate West returns some 61 results. You can use that to get an idea of what is in the area, but I would check other sites to see rates, as you can generally get a hotel less through another booking site (or even the hotel direct) with coupon codes found online.
There is one called the Maingate Lakeside Resort (used to be the Best Western Lakeside). We stayed there for one night (when it was BW) before moving onsite about 3 years ago at Thanksgiving (when we couldn't get all of the nights we wanted thru WDW). Recent reviews I see look like it is indicating it is run down, however it was decent for the price when we stayed there.