Hi...Thousand Oaks is a newer developement that is quite a ways south of Disney off Old Lake Wilson Road. It is not a hard drive to Disney from there either up Old Lake Wilson to 192 and east to Disney or head north on Old Lake Wilson as far as the stop light at Osceola Polk County Road (by a CVC Pharmacy), turn left and backtrack a little and just before you enter Champions Gate turn onto I-4 East (Orlando) to the Disney entrance.
For grocery shopping you will definately want to go into Champion's Gate to the Publix there. It is the closest and best prices.
Thousand Oaks is really out in the middle of nowhere as Disney Housing develoments go...Nice homes, just out in the country. You should be able to get a very good price because you are 10 minutes farther out than a lot of the other homes...
If the home has all you want and the price is right, go for it. For absolute sure, you will need a car for everything...nothing will be in walking distance...but most rental homes are not walking distance to shops or restaurants...
Good Luck...Ted