The definition of someone with a musical addiction is when you buy a CD, put it in your "new pile," forget about it for a few months, and then re-discover it when you get around to alphabetizing your collection again when you have a break from school.
I don't think this Bishop Allen CD has all the songs they recorded on their "1 EP every month" idea but I assume they put all the good ones on...
Here are two of my favorites:
Bishop Allen -- Click, Click, Click, Click
Bishop Allen -- Corazon
Both of these songs come from The Broken String.
Bishop Allen offer a bunch of other free mp3s here.