They've dropped 4 of their last 5 bowl games. All close games, and some against very good teams, but they don't get a gimmie for the Oklahoma game forever. This year, they played well against Oregon, for at least most of that game, and really haven't been too impressive since. They are a good team, but not a great one. I think we'd compete well against them, but I wouldn't guarantee a victory.
Whoever is higher ranked of Boise or TCU will be in a BCS bowl if they are in the top 12, which no doubt they will if they stay unbeaten. That's automatic. It'll be interesting to see if TCU can catch them. TCU beat Virginia (who looks pretty good now that they've dropped the spread) and Clemson, and still has BYU and Utah.