Speaking from the point of view of a very recent convert I can say this: I will never go back!

I just recently purchased a G4 iBook and over the past month and a bit I still cannot say enough about it and am still on a daily basis surprised by the time it saves me.

I was a hardcore redhat user for the past 6 years or so. I only used windows to validate my web design in IE. Since I have bought the mac I find simple things that I found so tedious in windows and even linux are made easy. The alternate take on directory browsing, software installation, and system scripting.

To date I have yet to find an application that cannot run on the mac that I had on windows. The one or two that I have found to be of lesser quality on the mac I have found different programs which I have now converted to which do much better jobs.

For CSS editing and even text editing in general I was a die-hard VIM user. Now I use BBedit and the difference has been like night and day.

For documents and such I still use MS Word when required.

As for the other applications other than the finance software I have found the default apps that come packaged with the mac more than useful but were nessisary have found no lack of options as substitutes.

In then end I have come to truely enjoy working on the mac. I hope that you do to.