My LHS has some in stock the last time I looked, it's Meadow Ridge Hobbies in Jefferson City, Missouri..................might also be listed as Taos, Missouri.
The last time I looked at them he had 4 or 5 instock, al Union Pacific, hope this helps.
Mark
mark twain hobby in st, charles mo shows one in stock
http://hobby1.com/store/search/theme/HO-Locomotives/page7.html
Does anybody sale the Athearn Genesis UP SD70M? Ive searched on the internet and lots of places sell BNSF and CN SD70M but nobody has UP models for sale.