Re: HD Single Stage Press
What caliber do you have in mind?
The Rock Crusher is fine for most all case forming.
Also keep an eye out for the Lyman Crusher (formerly the Orange Crusher if you're shopping used), the Hornady Classics are also the same size and strength class as the Rock Chucker too. Besides those three, pretty much every one of the makers has a press in that size class...even Lee makes a big cast-iron frame press.
If you're forming a really big case, you might need to step up to the RCBS AmmoMaster or similar....but that's definitely not the norm.
A Rock Chucker size press should do pretty much all the case forming that most guys will ever need to do.