> Window Max & Min buttons randomly work depending on the application
In OS X I rarely use these buttons. "Minimize" is very rarely useful. If I want to get an app out of the way I use Hide (CMD-H). Hide Others (CMD-Option-H) is also useful for making the current app the only one visible.
Minimize is only useful to me when I want to get a window out of the way within an application (but not get the application out of the way). For example, lets say I had multiple Terminal windows open, and there was one that I knew I wasn't going to use for a while, and I didn't want it to show up when I cycle through windows when I hit CMD-`, then I would hit CMD-M to minimize. (This is hypothetical, though, I don't use Terminal that way.)
I admit the "Zoom" button (what you expect to be Maximize, but isn't) is rather inconsistent due to apps having different opinions on its usage (iTunes being one of the worst). If you want Windows-style maximize, you can use something like shiftit ( http://code.google.com/p/shiftit/ ) which gives you a keyboard shortcut for it. It also gives you Windows 7 style tiling and more tiling features. I have a fork of this open source project where I'm experimenting with being able to resize windows to percentages of the screen size using keyboard shortcuts: http://github.com/nileshk/shiftit
Also, checkout this company's non-free products: http://irradiatedsoftware.com/
Going back to your previous post, I think Windows 7's taskbar misses the point (assuming it's trying to copy OS X). What is nice in OS X is the whole app switching model. In OS X, when you click on an app in the dock, you are switch to that app bringing up all the app's non-minimized windows, whereas in Windows you are always switching to a specific window but not to the app as a whole.
While I use OS X's dock, I use QuickSilver to switch to apps even more, which gives me a more precise keyboard-based way of navigating to the app that I want, where I can literally switch to an app that I want without looking at the screen (more that I don't have to study the screen in this process, which makes it faster for me). Spotlight can be used similarly, though it doesn't handle Finder the same way as Quicksilver (can't switch to Finder with Spotlight). I don't use Expose because I find it takes to much time to find and pick out the window I am looking for.
Honestly, it took me 2 years of owning a Mac before I preferred it over my previous preference (Linux). I think it's a mix of the fact that it is a UNIX and the polish and little details of OS X (there is a lot to both it's form and function). It takes time to appreciate, because it is significantly different than other popular environments.
I'd like to know what is so great about Windows 7, but my experience with it so far has made me think it is just another Windows with some eye-candy (which is not to my taste) and some decent Window tiling features. But I have not been able to give it an honest chance, because one of the .Net projects I maintain requires XP.