That's why I'm looking for a laptop and not a desktop. In most places, however, I should have access to an outlet, so battery life isn't vital. However, money is, especially in this economy, so I want to waste as little as possible, and if I can save on not having to buy a graphics card, I'd love to.
Probably the most intensive thing I do on my computer is video chats (Skype and MSN), YouTube videos, and listening to music using iTunes. I do compose music using a computer, but I primarily use my more powerful home desktop for that. In terms of the graphics in Vista, I'll probably install XP over it anyway, so I'm not concerned about that. This computer will be primarily be my work computer, although it will also be used for web surfing. From what I read here, this probably doesn't need anything more than the included graphics card.
Thanks to everyone who helped.