I have an external LACIE DVD Burner and HDD. I also have an old iMacG5 (2GB RAM) that I use for heavy duty stuff (video editing). main thing I'm going to use the new Macbook for is web surfing, email, iPhoto, iTunes (a lot with music), MS Word, MS Excel. Will the 1.83 version be fine for what I'll be doing? I'd rather not spend more than $1100. I can use my external Lacies that I use with my iMac with the Macbook right? I have the 500GB HDD and the D2 DVD burner.