how much are they? I would really like to purchase some!
http://www.dpamicrophones.com/
Just email them for a price list in PDF format. Their customer service is great and should reply within a day.
For pricing potentially lower than the manufacturer's suggested retail, try these popular online retailers:
Cascade Media (http://www.cascademedia.net)
Sonic Sense (http://www.sonicsense.com)
Dale Pro Audio (http://www.daleproaudio.com)
Oade Bros (http://www.oade.com) (don't think they carry 'em, though)
Best bet when pricing gear: always call around - most online retailers can't quote their lowest prices on their website.
I ordered my DPA's from sonicsense. Another great retailer to deal with.