Before you get yelled at by the longtime members on here, I'll cover these...
Black engines - 2009 model year.
Consider a Free Spirits tensioner if you plan on keeping the bike long term. Lots of information on this here - see the howto section. The belt doesn't stretch, so when you bounce up and down you're transferring forces through the rear wheel and the front sprocket which will be reduced with a tensioner. That's the non-technical description at any rate.
Oil drain - there are two under the bike (surprise surprise). One for engine oil and one for transmission oil. Use Harley oils as recommended in the manual you'll get with the bike. Drain it hot. See the howto section for more details.
Things to keep an eye on? Suspension setup needs to be done right to enjoy the bike's potential. I'm sure there's more, but I'm a rider more than a tinkerer.
You will needs some imperial tools - see the howtos for more details.
Most of all - enjoy the bike. I've got an 09 XT as well and love it - I'm sure you will too.
