Help with Bats Easton/Louisville/Demarini

[yankee4life]

It's time for a new bat for my daughter. She uses a 2007 Miken Halo Lite right now. She hit the ball very well with it. But it's time for her to move from -12 to -10. Looking for 31/21. I've found deals on:
Louisville Slugger: 2007 TPS Catalyst X-1 (Sky Blue Bat)
Louisville Slugger: 2008 TPS Catalyst FP81C (Orange Bat)
Easton: 2008 Synergy SCN8B (Blue Bat)

Haven't for a deal yet but also looking at 2008 Demarini Phenix.

Can you let me know your thoughts on these bats or another bat not listed.

thanks

[SSdad]

I have seen the blue Synergy's on Ebay for less then $150

[dittoz]

Picked up the CF3 for my DD - under $200 shipped from several eBay folks.
Wrapped and with a valid receipt...