Just wanted to comment on some things that were bugging me.
wizardjian wrote:Ok to keep it short
PC-(windows)- Made for people who wants to scripted play games and editing. Gives you great control over mostly everything. Bad- slow and lots of viruses.
Mac- High speed comps made for working and the viruses are so low u cant even find them. Bad- cant to much, gaming and editing are greating limited.
If possible try to get a alienware laptop.
Alienware- High speed, great anti virus abilities, gaming is highy supported and editing and scripted are also great (it runs windows 7 i think)
tom k. wrote:Although this post seems like a spambot I'll answer anyway.
Windows - probably best as it is unrivalled in terms of comparability. For example, there are about 4000~ games on steam for windows, and little over 100 for mac. I don't think there is even a client for Linux.
Mac - my personal favourite. Because the hardware is selective and controlled it works well. A mac will nearly always run better than windows in every respect, but not with gaming. The app store has a lot of cool games but many games written using XNA or other tools simply aren't compatible with mac. Java games work fine though so towns is great

there are certain problems with mac. EG: I have a ATI HD6850 and GLSL (shader language for open GL) doesn't work on mac. This isn't a problem, but Minecraft looks nice with some different shaders

however, about editing, macs are renowned in both the web development and graphics industry for being great for editing.
While the operating system does have an affect on the speed of programs, with modern hardware the difference is negligible. Most proponents of Mac OS being faster than Windows are ignorant regarding the hardware aspect of the issue. The reason Macs appear faster than Windows PCs to many people is because of an inadequate hardware comparison. From a graphics designers point of view, a Windows system with identical hardware will deliver equal performance to that of a Mac OS system. A Windows based system can also easily exceed the performance of the Mac due to greater compatibility of software and the ability to purchase superior hardware at a much lower cost.
As for not being able to find viruses on Mac OS, be aware most malware for Mac OS are botnets and/or spyware which are designed to be disguised from being noticed by the user.
There isn't a Steam client for Linux but the Windows one can be run using WINE. Since it's not native to Linux expect trouble and realize that not everything will work. Each game will also need to be individually tweaked to run under WINE and many will be buggy if they even work at all. Aside from gaming Linux is an excellent operating system for programming and web browsing. Even most completely computer-illiterate people won't have much trouble using a pre-setup GUI Linux system for basic web browsing, despite the belief that using Linux is hard.
As a side note, on Windows if you install a decent internet browser such as Firefox or Chrome with an ad-blocker add-on (I recommend Ad-Block Plus) you've pretty much decreased your chance of getting a virus by over 95% (as long as you don't go on shady/warez websites that is. Most viruses on Windows systems arise from infected website advertisements. Also for more security, consider the WOT(Web of Trust) add-on for user based ratings of websites.)
Also Alienware is a company not an operating system. Speed is relevant to the hardware and the anti-virus abilities are no different than any other Windows-based PCs.