What amp should I get for my two Rockford Fosgate T1D212 subs?

[Dadadad D]

I would lke to run them at 2ohm

link to Subs:
http://www.rockfordfosgate.com/products/product_details.asp?cat_id=4&series_id=32&family_id=12&item_id=112877&locale=en_US&p_status=