Q: I'm switching from pc to Mac, is there a way to transfer all my music and photos from my pc to Mac book pro, I also have a hard drive will it open files from my pc

Yes, the Mac can read NTFS drives, but not write to them.

If you have the drive formatted FAT or exFAt then the Mac can read and write to it. But before formatting, remove the data as it's erased, and format it on the PC as it's easier. Right click on Windows and Format.

Drives, partitions, formatting w/Mac's + PC's

Moving your personal data via the external drive is likley the best option, there are other methods like Migration, but they are problematic and take a long time, a drive is simple, fast and direct.

You might find the Windows Migration Assistant useful.

http://support.apple.com/kb/HT4796?viewlocale=en_US#