Zoltank

I currently have a eTrex HCx and I'm looking to replace with something that supports Birdseye imaging. I'm currently looking at the eTrex 20x and the eTrex Touch 25. I really like the idea of a touch screen, but the Touch has half the resolution of the 20x, and I'm afraid with Birdseye images it would be really limiting. I was hoping someone might have some input on this.