This looks like it would be really fun to ride!
http://www.anthonysloan.com/ibike05/ibike05pugsley01.jpg
http://www.anthonysloan.com/ibike05/ibike05pugsley02.jpg
http://www.anthonysloan.com/ibike05/ibike05pugsley03.jpg
26 inch wheels with 4.0 tires! Yeah, that's the ticket!
More info from the Surly site:
http://www.surlybikes.com/pugsley.html
http://www.surlybikes.com/parts/endomorph.html