Another Virginia Eos owner - cool!
High performance out of a 2.0L turbo motor doesn't come free, unfortunately. VW recommends 91 octane minimum, and there's even a placard on the inside of the fuel filler door in case folks don't read the owner's manual. I just pay the extra twenty cents or so per gallon, and enjoy the car. In my case I'm used to it, having long had to buy premium for my modded CRX and Dakota.
For the 2009 2.0 TSI motor, the recommended viscosity is 5W40. I think the owner's manual also says you can use 0W40 if 5W40 is unavailable, but don't quote me on that.
Most importantly, to technically keep your drivetrain warranty intact, the oil has to approved for the VW 502.00 specification. There aren't too many that meet this spec available on the shelf at your typical local Pep Boys or Advance. One that I have seen at most auto parts stores is Castrol Syntec 5W40. It's not cheap at $7/qt, nor are any of the VW 502.00 oils. On the internet you can order convenient 5 liter jugs of European oil that meets the VW 502.00 spec, such as Pentosin, Total or Motul.
www.ecstuning.com,
www.germanfilters and
www.performanceoilstore.com are three places I'm familiar with; there are others.
As far as I know there aren't any aftermarket filters for the TSI motor, so be prepared to spend $12-13 at your local VW dealer or online. Even if aftermarket versions eventually become available, they won't be much cheaper, based on the prices of the filters for the older FSI engine.
If you want to do your own oil & filter changes, I wrote down some tips here:
http://www.vweosclub.com/forums/showthread.php?t=2609 The first three changes at 10K, 20K and 30K are free, but some people like myself prefer not to go that long between changes.