Wow, what a great question. I wish I one quick on concise answer, but here goes. I love the CM Personal trimmer and us it on all my pictures. I also love my Carl 12" Paper Cutter and need it's size for my larger paper. As for cutting shapes the CM Cutting System is a must have. I have also recently found colluzzles and am really loving these too. In order I would say first buy the small personal trimmer, next the CM cutting system. You can do a great deal with these two sets and can add others later. Happy Scrappin'.
Lisa