I use Hornady reloading equipment (press and powder measure). I have a Lee hand primer, various load blocks, use Hornady one shot case lube, RCBS Chargemaster for when I'm loading stick powder, and a Gracey Case trimmer (which trims,chamfers and deburs all at the same time..uber sweet for doing large batches of brass!!), and hornady, rcbs and redding dies.
I guess what I'm getting at and others have said as well, the kits will get you going, but more than likely you will end up with a hodge podge of equipment. You wont necessarily go wrong with any one manufacturers kit, but you may be better served by buying individual components.
ps. The Hornady Lock and Load bushing set up is awesome!! I have several dies pre-set in bushings and changing calibers is as fast as taking off one die and putting another in my press. It's fast and zero hassles.