check out the 9 and 12gal CADLIGHT tanks, I really like the 9 gal tank, 5mm thick bow front, I like the minimalistic design, very attractive and for $70 not too bad for that quality tank. They also have some interesting T-5 lighting options for the Nano's too.
http://www.cadlights.com/product_info.php?cPath=2&products_id=87