I think there is a garchomp, but from what I've seen there aren't many worthwhile pulls from them, unfortunately. I remember seeing the scans for the set, so you could do a search for those if you are really contemplating this.
yeah...rare candy and roseannes. But Garchomp is cool for artwork, IMO. POP8 had no pokemon that were cool though. Probopass was eh, Heatran is the card I used for Blaztran, and Luxray is just...eh...
Yes, open them and make the fun combo deck. A kid at my league made one, and I still need to play it. It could just be something fun to play for a week at league.