A couple of rims with 603 ERD that would be OK replacements for your aerohead (you can use your original spokes):

Alex R390 in black- eyletted semi-aero rim for 35 bux:
http://aebike.com/page.cfm?PageID=30...ils&sku=RM7534

Mavic open pro:
http://www.lickbike.com/productpage....B='2106-32'

Good luck,