For a basic wrenching set I would just get something from your nearest big box hardware/home improvement store. Things like your first ratchet handle, hex sockets, allen sockets, and crescent wrenches. Home Depot and Lowes have lifetime warranties on their hand tools; so if you crack a socket, you can take it back and get a replacement that same day. Very convenient.
After you build out this initial set, you can start upgrading what needs upgrading. Maybe nicer ratchets, specialty tools, etc., but only as you need them so you don't end up blowing your money on shiny German things (which is very easy to do). I love my tools but also like to save some money for bike farkles.
2007 910R and 9 other bikes