It's gonna depend on your budget. As you already know, everything about the BMG is bigger. Chances are your trimmer won't work, your powder thrower won't throw the 200-240 grains of powder, your case prep tools (primer pocket tools in particular) won't work... The Dillon is a nice machine, but is going to be a huge investment. My setup is an RCBS Ammomaster (which does double duty as a regular single stage press with optional die bushing), an RCBS powder throw (their magnum model), and an RCBS case trimmer made specifically for the bigger cases.