Get ANR
If I can give you one piece of advice, it will be to get the ANR. Definately worth every last penny. You can by a midrange headset for $150, or a good ANR headset for $350-400. If you plan to be flying for several years to come, ANR's will wind up costing you like $1 more a flight. It is so worth it.
If you are unsure, take a flight with a cheap $100 headset, and then fly the next flight with the ANR. You will never go back to passive headsets.
As far as brand, I have heard good things about Lightspeed. When I bought by ANR, it was between Pilot and Lightspeed. If you want some info on Pilot, they are real good headsets. As far as Bose, I would not recommend paying $1000 for them. Just not worth it. When did my CFI last summer, I borrowed a pair of Bose from someone for 2 weeks. Then I flew after that with my normal ANR's, and there is no difference.
Be sure and get the ANR's!