The Lee is a nice reloader but it takes a little more attention then the Mec 600. I have both and I think the Mec is a bit easier to load higher numbers. The Mec is nice since you get a the powder and shot bushings.
I think if you are going to reload 4-5 boxes a week you would want a progressive. The link you posted had a Mec650 for $250-$300. I know the Lee is cheaper and works well but I think with loading 2-300 shells a week a progressive will pay for itself in the time you save.
For the other stuff get a good book. I started without one and was always a little unsure the load I was SET UP with. The Lee comes with a quick refrence but ..... Once you look through the book you should be able to pick the primers ect.
Good luck
Mark
