If you're ever in the area you need to check out Blue Max Liquors in Apple Valley. On County Rd 42, just west of County Road 11. Very non-descript from the outside, being in the parking lot of your basic suburbia strip mall. BUT, they carry an absurd number of beers (most available as mix and match singles), whiskies....
I haven't been down there lately but check out:
http://bluemaxliquors.com/about_us.html
heh, looks like they even have a twitter feed for announcing new arrivals @bluemaxbeers