The best book available for Lua is probably the second edition of Programming in Lua -- it's not game specific, but it's an excellent explanation of the language written the the chief architect of the language. If you can't afford to purchase the second edition you can find the full text of the first edition available for free online. There have been some changes to the language, and some of the information is out-dated, but the majority of the information is still relevant.
Looking into Lua and some good books.
The reference manual is also an excellent resource, and there are some good user-provided tutorials for the language here.
Between those and the documentation for LOVE you should have plenty of information to get started!
Woah, thanks again ^.^ I'll probably buy that book with the rest, tons of great programing books for different languages out there. I'll probably grab a few C# and Java books.