DIY dehumidifier ideas wanted?

During the summer it costs me more than a dollar a day (250 KWHr/month) to run the dehumidifier in the basement. Being a green kind of guy, I wonder if there's a way to dry out the air using the solar power that's abundant during hot humid weather. I don't have a problem with coolness; it's 60 degrees down there. My thoughts are: use an air-to-air heat exchanger to just heat the air (thus reducing the %RH); using a dessicant wheel that's recharged using solar heat (I've seen some commercial units, but they're too big); or using an absorption cycle cooler that uses a solar collector (has to be high temp); or a thermoelectric cooler run by a PV panel (not good efficiency). So, any more ideas??