Or N Frame and get 8 [insert maniacal laughter here] (that S&W Night Guard 327 is a sexy beast)S&W J frame, K frame or L frame. 5, 6 or 7 shots in the same order.
For a good .357 Magnum BUG I would choose either a S&W M640 or S&W M649. The M60 is also a good revolver but the exposed hammer might be a problem when drawing. Those revolvers are ~23oz which isn't ultra light but not that heavy either. They are easier to shoot well than a 12oz Aitlite. I own a M640 and it's a very good revolver even when shooting full house Magnum ammo. (couldn't find a M649 lol)