Another RCBS related note.
Not every "O" framed press made by RCBS is a "Rock Chucker". The Rock Chucker is a cast iron framed press. The RS5 and Partner presses are aluminum frames. The Partner will get you started but it's not my favorite design. The Reloader Special 5 ( RS5) is a very good compromise between cost and quality.
I've had a bunch of presses over the years; some iron, some aluminum. The aluminum ones can be very strong and functional presses.
Do your research first and spend your money second. You'll be happier in the end if you avoid buying on impulse.