Thanks! I am a idiot I must say, I forgot I have a KitchenAid mixer, and there are attachment for it for processing food. Just have to go buy the attachments! been wanting the other pieces anyways. hope they work as expensive as they are.
I use the Kitchen Aid with the food grinder attachment to process tomatoes. The usual method is to scald the fruit so the skins loosen, then core and cut into pieces.
Using the same parts that you would use to grind meat, (auger, blade and coarse plate) feed the pieces into the hopper and then catch in a sauce/stock pot. I happen to have the sausage stuffer as well and have found that using the tube makes things a little less messy, but it is not necessary. This, of course, leaves the seeds but, like petalfuzz, I don't mind them. For salsa I don't imagine they would be a problem either.
You can get different attachemnts for your stand mixer, just choose the one that you will get the most use from.