I've had a quick look on eBay, the battery runs you down $28.69 including shipping, if you replace it yourself.
It doesn't look that hard, judging by the guide on iFixit, either.
Even if you decide to upgrade later, you'll always get a better price with a new battery.
If this is the wrong section, it would be nice if someone can move it to the right one.
If you've (like me) waited for something like this for a long time, you know that this isn't spam.
Plus, it's free, so there shouldn't be a problem as well.
iOSLiveTV.com is a web-app that lets you watch most major TV stations from the US, UK, France, Germany and Italy on your iPhone, iPad, iPod Touch or Apple TV (via AirPlay) for free, from anywhere in the world.
Check it out!
System Preferences -> Sharing -> File Sharing.
If you enable that, you can share folders via right-click. They pop up on your Windows machine then.
Yes, you can install Windows on your Mac, but unless you play games, everything works on your Mac as well.
Intel MacBooks, due to UEFI, don't have restrictions on the hard drive size (at least in the Terabyte range). The only thing that is limited is the physical space (to 9.5mm in height), but there are 1TB 2.5" hard drives that are 9.5mm high.