Links:

http://www.textkit.com/  This site has Allen and Greenough’s New Latin Grammar, which I recommend highly

http://www.perseus.tufts.edu/hopper/text?doc=Perseus:text:1999.04.0059 Lewis and Short, A Latin Dictionary

Want to have the entire Lewis and Short on your computer? See http://retinenda.com/verba/

Want it on your iPhone or i Pod for $4? See http://retinenda.com/2009/01/lewis-and-shorts-a-latin-dictionary-comes-to-iphone-app-store/

Greek on your iPhone or iPod for $5? It's at the iTunes app store.