http://www.magmaengineering.com/products/magma-star-lube-sizer
You can get a new RCBS lubesizer from WSS and a new Star from the manufacturer for $275 U.S., with either one of them you spend enough on different sizes of dies that the orig. cost of the sizer will be of little consequence, when all is said and done.
Once you have the star... you'll want more accessories $250 turns into $1000 or more, when you start adding features like roller handle, air feed, bullet feed...
I have all the options on mine but the automatic bullet collator... I have used the others and decided that the star is the best.
I normally size about 2500-5000 bullets at a time... how many do you do ?