What are you needing help with specifically? If you know PCs pretty good, things are are more similar than you might think. The only problem I see is that the longer you work on the Mac, you are not going to want to go back to a PC again. You can PM me with any specific questions if you would like, I have been on macs for over 14 years now.
My Tag: 2 Timothy 3:1
Jesus Christ is the ONLY way to Heaven! (John14:6)
Every second 2 people die . . . What if this is your second?