Knabe, that Mackeson is the beer that is the inspiration for Left Hand Milk Stout (among others) that I'm very very fond of. I'd really like to get some, but I don't think they distribute around here. My local grocery store just got their first shipment of Bell's in today. They also carry four Sierra Nevada beers regularly, as well as three Spaten varieties, three or four Brau Bros types (their Milk/Oatmeal Stout is wonderful). They also have the usual "craft" line up of Leine's, Blue Moon, and Shock top, but I tend to steer clear of those as they're owned by macros.
I used to not really like the IPA's, but recently i've developed a taste for some of them. I don't like the extreme ones like DIPA's (yet). The IPA's started so the beer would keep fresh, but in the last 20 years or so, lots of experimentation with different hops has yielded many different flavors and layers of complexity that I can definitely admire.
I would definitely be willing to send some harder to get Midwest beers out to you west coasters in exchange for some of the rare deliciousness that that far shore has to offer.