i want to get a new imac. i have a pc desktop with a phenom 9100e, and i want to get an imac. i know the baseline i5 2400s is better than mine, but how much better is it? the i5 2400s is 2.5, and the 9100e is 1.8. both are quad core

The i5 is the second generation of this "family" of intel processors. I don't know a lot about amd processors but I know the intel is one of the best processors in the market. Compared to last years iMacs, the new processors are up to twice as fast. So I guess it could be more than 3 times as fast compared to the amd.

Good luck

Ps: highly recommend the Mac!

Use to be a website, still is, that gives you the amount of monies that you would have made if you invested in Apple rather than buying an Apple, is almost scary. The same does not apply for Windows, but it is kinda close.
If you had of invested the price of a new Apple in 2002 you would have enough monies now to buy 20 Apples and a Rolls Royce, think about it.

Use to be a website, still is, that gives you the amount of monies that you would have made if you invested in Apple rather than buying an Apple, is almost scary. The same does not apply for Windows, but it is kinda close.
If you had of invested the price of a new Apple in 2002 you would have enough monies now to buy 20 Apples and a Rolls Royce, think about it.

that is the worst excuse for wanting to spend some cash that i have ever heard :)
go buy it! it's far superior to the one you have