I should mention this store. I've purchased from them before and they have good prices, a good selection, and an easy to navigate store.
http://www.scalehobbyist.com/
You will find Gatos at 1/144, but the only other modern stuff you will find is Chinese stuff, and the Kilo. (also the Seawolf which you said you didn't like). They make 1/144 scale Akulas but that is RC kits starting at about $500.