I have one, my second, but I would love one of the Cuisinart's with the large feed and bowl.
I use a mandolin for slicing and now that I got one with a thingamajig that goes on top of whatever is being sliced to hold it firm .....I am no longer slicing myself too. Before I got this one....I came pretty close to needing stitches a couple of times. I sliced off a whole chunk of my thumb....those puppies slice so well, that I wouldn't know I was sliced until I saw the blood.....which is very bad for both the potatoes and me.
I use the food processor for chopping large quantities and it's wonderful. It's rare for me to do anything else with it. Best thing for chopping nuts though. Chop them frozen and they won't get pulverized.
I have a KitchenAid mixer that I use when making bread dough. I also have the grinder attachment that we will use for grinding meat - particularly venison for chili.
I highly recommend a mandolin....I found a plastic one at Ross's for less than $10 and it works just as well as the stainless one that was more money and sliced me because it didn't come with a "hand guard" which is mandatory I think. Crate and Barrel and Williams Sonoma carry them...but theirs are expensive.