Microtek has a new one out called the i900. 8x10 trans. bed, 4.2 dmax, 3200 dpi, Sounds like a good scanner but I haven't heard/read any independant reviews or have seen a sample scan.

http://www.bhphotovideo.com/bnh/controller/home?O=productlist&A=details&Q=&sku=318953&is=REG