Have a hand press and the classic loader. I did a batch of 25 .357 Magnums yesterday on the classic loader - to be honest, because I didn't want to fiddle with the dies I have set up for .38 Special in the hand press. I works fine, and it is fun. I don't know that I would want to do hundreds of rounds at a time, but it's enjoyable.
To be honest, I'll take out the hand press and decap a whole buncha cases at one time. I can do that watching TV or listening to the radio or watching the kids in the driveway. If I'm on a roll, I'll use the hand press to prime, too. Then I have primed, ready-to-go cases.
Then I'll bust out the classic loader. One tap and it's flared. I use the dippers (the .5cc scoop with AA#5 gives me plenty of ooomph for a range round - and yes, I have weighed the load of powder and yes, it's fairly consistent with what it should be, right at 8 grains for a 158 LSWC.) The hardest part is figuring out how much of a tap to give it to crimp the bullet. Tap too hard, and it has a REALLY hard crimp. So, I would give it a few taps, pull the cartridge to check, tap some more, check, and so on until I had the idea of about how much force to use. I did the 20 rounds yesterday in about 30 minutes.
If you're on a tight budget, the classic loader is OK. Check wiedeners - they had them for about $10 when I ordered mine this summer.
And, by the way, you CAN use the .38 Special loader to do .357s and vice versa. You do NOT need to order separate ones. I called Lee and asked - the difference is in the size scoop you get and the load chart. Email me or PM me if you want more info about it.
Best wishes,
Q