Mac Forums

I'm getting a 13" Macbook Pro next month. I have lots of questions because I have using the same Dell Inspiron 1521 for 3-4 years. Please help!

1) How many documents/music files/pictures can fit onto the Macbook when it has 4GB 1066MHz DDR3 SDRAM - 2x2GB memory & 250GB Serial ATA Drive @ 5400 rpm hardrive?
2) I like to delete my browsing history [permanently] every time I click out of my browser because ir's supposed to take up space when you save everything. How can I do that?
3) Does iLife come with the Macbook Pro? Along with iPhoto, Photobooth, iMovie, & Garageband.
4) On my Dell, my dad already purchased Microsoft Office [almost all of them] as a family pack. Will I have to buy Microsoft Office again onto my Macbook when I order it online?
5) How does the Macbook Pro come? Like when you order it, it comes to your house, and you turn it on, how do you get started?
6) I need to transfer all of my files from my Dell to the Macbook. What's the best way to do that? USB?

Thank you!