First: I'm sorry, but the decision to buy or not buy a new 13" Macbook Pro is not an "urgent" one.
Second: It is a great computer. I find it to be noticeably faster in what I do compared to my prior generation 2.4 GHz C2D 13" MBP. I like that it will be a bit more future-proof than Core 2 Duo machine it replaced, I like knowing that software will be more and more optimized for the Core "i" series processors, and that it can do anything I'll ask of it. I am not a gamer, so I don't give a hoot about gaming FPS. That said, for whatever it may be worth, the new 2.3 got the highest OpenGL score in Cinebench of any machine I've owned.
Third: Compared to the 2.4 C2D refurbs now available, I think the new one is still a better buy--when you can buy more processing power than was available in the top of the line 15/17" MBP for $1200 (or $1100 with student or military discount), I think it's well worth the cost difference.