You can't double-speed using OSX and Safari (the Mac operating system and browser). I'm pretty sure you can still double-speed using Windows and Internet Explorer or Firefox/Chrome. It's not a limitation of the laptop itself (Macbooks are fundamentally no different than any other laptop).
So does anyone know the cheapest/best way to get the software to run windows on a mac? Also, I've heard that installing Windows can slow you Ram down a little....anyone with any experience?
Macs come with the program necessary to install Windows - simply launch Boot Camp from Spotlight. However, the one major caveat is that you need a full copy of Windows on a disc. Not those cheaper "upgrades", mind you, but the for-real-deal full installation of either Windows XP, Windows Vista, or Windows 7 (just use 7). How you choose to obtain Windows is up to you, but the best and most legit way is to buy it from a campus store with your educational discount. Boot Camp will lead you through the entire process. It's incredibly easy - it'll ask you how large you want the Windows partition to be, using a visual representation of how large the remaining OSX side will be and how large the Windows side will be. Of course, the downside of partitioning is that you're basically cutting your hard drive into two pieces. Windows will be on one piece, and OSX on the other. If you decide you really don't need Windows, Boot Camp also has the option of erasing the Windows partition and re-integrating it with OSX (restoring the original hard disk size).
As for making your RAM slower, I don't see how this is even possible. My Macbook didn't have a performance hit when I installed Windows. . When you boot into OSX (the Mac operating system), the computer won't even utilize the Windows partition for anything except file storage. Same goes for when you boot into Windows and view your OSX partition.
I know all of this sounds horribly complicated, and in some ways it is, but Boot Camp does a pretty good job of making it simple. Besides, if push comes to shove, "Google It".
If you decide to put Windows on your Macbook, there's one very important thing to remember: choose your partition sizes carefully. For every gigabyte you allocate to the Windows partition, the OSX partition loses a gigabyte. If you think you'll use Windows almost exclusively, feel free to give it a very large partition, but if you find that you like OSX more than Windows, don't give the Windows side a huge partition. I personally use OSX for non-productivity applications (music, movies, internet, etc) which tend to use a lot more hard drive space. Windows is my school/office/work/etc side, and documents generally don't take up a lot of space.
Lastly, but perhaps most importantly, be smart with which kind of MS Office you get. Apple will try to talk you into iWork, which is a pretty decent Office clone (and cheaper, usually) but it's got some compatibility issues with DOCX, XLSX, etc files that are common in newer MS Office suites. If I were you, I'd go with Office. The real challenge would be whether to get the OSX version (yes, Microsoft actually makes MS Office for Mac) or the Windows version. I personally think the Windows version is still superior.
I know that's a lot of advice, but I was trying to answer as many questions as I thought might arise.
