Ian, please believe me when I say I am not a press snob, but the Pro-1000 isn't much of a press and will be frustrating to use at best. A Loadmaster is a MUCH better press and is only about $75 more. Look on the Lee site for reconditioned presses, great deals can be had.
A Dillon SDB isn't a terrible lot more money than an Loadmaster, and it is a lot more press. Problem with it is Dillon is the only one that makes dies for it....
If you can step up to the $350 range you can get A 550B, as solid as your RCBS and a fantastic value.
Take a good hard look at the Hornady L&L and the RCBS Pro-2000 too, both are quality presses and around the price of a 550B.
I wouldn't have posted this but I have used the Pro-1000 and the Loadmaster. To be able to use them without pulling your hair out you need to be the sort that doesn't mind a little tinkering with it to keep it working right, and have a pretty good mechanical mind.