These are great suggestions and some of them are things that I use frequently, but if I were a newbie scrapper I'd feel overwhelmed with too many bits and pieces. I'd probably want templates (regular and Project Life), shadows, and a few good kits that matched who or what I'd be scrapping.
So for a generic suggestion list (assuming this is meant for something along the lines of a blog post rather than you having 1 person in mind), I'd include:
-baby kits (1 boy and 1 girl or a gender neutral kit)
-3 kits good for a wide range of ages (1 boy colors, 1 girl colors, 1 easy to use for both)
-a wedding kit
-a Christmas kit
-a kit for each season
-a Project Life/everyday moments kit