Welcome enlightened one.
I say enlightened for two reasons, firstly you have chosen a steed of such calibre, second because you have chosen the original Tenere colour, but it is a heavy cross to carry, many others didn't acquire the correct colour and hide their embarrassment and failure behind shallow quips. Do not hate them, just pity them.
Now, go and have a look here ->
http://www.xt660.com/forumdisplay.php?f=198
The best way to figure out what you need/want is to look at other bikes, where better than a meeting of like minded individuals ? Oh, and have some fun too!