I'll see if I can throw these in today, if not it won't be for a while
Btw on the decimal to hex thing..
Hex is base 16, a "normal"/decimal number to most people is base 10, and binary is base 2 (hex is a shorthand way of writing binary numbers)
If you learn how to use base N then using any other is simple, A-F is only used since base 16 needs 16 unique numbers/identifiers which runs out after 0-9 :P
If you google some basic math junk about it you'll see its very easy.