a question about chess software

I'm about to replace my computer, and, as part of that process, I was toying with the idea of getting some new chess software. I've been running fritz 9. Not that I really need an upgrade, I guess; because fritz 9 seems do point out my errors just fine. 🙂 this would be more in the nature of 'a lark and a frolic' I suppose. But I was wondering, what is the feeling out there about the current programs... Is Fritz 12 measurably better? Rybka? Junior? Others?

Any thoughts or input appreciated. Thanks

The graphical user interface (GUI) for Fritz 12 is definitely better, and there are some really neat features that allow you to easily have chess engines play matches against each other ( really cool when you want them to play a particular opening or position against each other to try to learn the "truth" of a position or line), so based on your "frolic" standard, I'd say it's worth the upgrade.

Paul