Now you've done it forsyth793. You've gotten Hondo44 talking about I- and J-frame 32s. That's like getting the Pope talking about True Religion!
Some people like those flat latches... I've got one on my Baby Chief that seems fine to me, but my niece with small fingers had difficulties with her pre-30, so we got her a later gun instead.
As for ammo, any commercially loaded 32 S&W (Long or "Short") will be fine in your Model 30. Several people here have also used 32 ACP in them with good results since it is only semi-rimless, but the pressures are a bit higher, so I would do this sparingly.
BTW, do you reload? Lyman makes a mould, the 311008 (formerly 3118) that drops a 115 grain semi-wadcutter. This is the heaviest bullet I like to use in a 32 S&W Long case. Start with the minimum load of a fast pistol powder like Bullseye or perhaps Unique and work up toward the maximum recommended load until you find the sweet spot for you and your gun. I generally like 95 grain SWCs in my I-frame 32 snub, but YMMV.
With the current buying frenzy, I doubt you'll be able to find much in the way of "special" ammo for sale. I know GA Arms has been absent from the last couple of gun shows I've gone to, ostensibly because their stocks are so low.
Enjoy your little Model 30, but be warned... they can be very addictive!
Froggie