I have a Kitchen Aid that I really like, but I'm not sure of the model number. It came with 2 bowls, 2 blades, and the slicing and shredding discs. It replaced a Cuisinart that I hated for two reasons: there were too many cracks and crevices that were totally impossible to clean (gross!), and it used a 2-step interlock which made scraping down or adding ingredients a nuisance. The safety interlock on my Kitchen Aid is just 1 step: turning the lid until it clicks.

I recommend giving some thought to these things, whatever brand or model you end up with. I'd have saved myself some money if I had the first time around...