@ vincent himpe
Intrigued by your two quotes;
"and what applications am i looking for you say ; well. lets start with some simple things. software that can compete with Adobe Photoshop perhaps ? Adobe Premiere perhaps ? Adobe After Effects perhaps ? how about some software to do schematic, mixed mode simulation, fpga coding, and pcb layout like what Altium Designer can do ? how about software comparable to Nero to make some home movies , slap some menus on it , print a nice cd jacket cover ...? how about a good Basic compiler/debugger ( comparable to visual basic 6.0 )"
and
"and dont get me wrong. i dont like microsoft either. but there is for now still no alternative. there is Macos .but there its the same story : you want applications ? then install windows on your overprices white box"
Not all Apples are white boxes any more. The new ones they announced last night are silver and black. :o)
However, apart from the niche software such as FPGA coding and electronics stuff (which I agree only works on Windows, but probably because 90% of the installed base of machines in the world work on it), every other software package you mention has a similar or even better Mac equivalent, sometimes without any extra cost than buying the machine.
Video Editing / DVD Mastering / Photo Management and Manipulation are all taken care of by iLife (which the register hasn't yet noticed has iterated to iLife08 last night), and if you outgrow the basic packages, you can upgrade to things like Final Cut Suite, Aperture, Logic and so-on. Plus you can buy most of the Adobe products for a Mac too (albeit not at PC World, but it is all available online).
And if you're so inclined, you can run Parallels and load XP and away you go. In fact, I have a Macbook which runs Mac OSx, XP, Debian and Ubuntu. And all at the same time if I wanted to (albeit very slowly!). I did that because it gave me greater choice over the apps I can run. On a normal PC I can run Linux and Windows. On a Mac I can run Linux, Windows and MacOS.
Linux works excellently as a backbone OS for the internet, and I for one would like more Webservers to be Linux/Apache instead of the hole-ridden IIS. It also is a great desktop, and I do like Gnome as I grew up on X-Windows on a Sun box. However, you are very limited at the moment as Vincent says in what you can actually do. Once more of the bigger software houses release Linux versions of their software, we'll definitely see an uptake. However, there are things like OpenOffice, Firefox and Thunderbird, so you can do the basic tasks we all use a machine for.
The Mac takes that building block (as MacOS is Linux / NeXTStep derived after all) and builds a more complex wrapper onto it, but it does most of what most people want day to day - just look at what the general populous wants to do and a Mac fits that glove quite neatly.
If it's a Windows specific business app then you're stuck with Windows. Doesn't make sense for them to develop for a niche OS.