Bianchi 6D-1
Just picked up a leather Bianchi 6D-1 for my Model 37. It has an intuitive thumb break over the hammer.
They sell a model 6D-1A for hammerless models. It secures around the trigger guard instead of the hammer.
The clip attaches VERY firmly to a good, stiff belt. This holster is a great buy at less than 25.00 for a leather Bianchi IWB.
Maybe it's just me, but I like the thumb break-I find myself forgetting about the snub since I don't have to worry about it falling out. VERY stable rig for the price (as long as it's attached to a quality belt)
For jacket weather or range duty, you won't beat a cheap Uncle Mike's kydex paddle. Not great concealment, but it works great under a parka (!) or at the range where you're not trying to hide anything.
If you've got the $$$, just get the best of the best. But, if you've got the school enrollment fees, the van payment, mortgage, pool chemicals, insurance, etc. you won't have to spend $200 to carry your gun comfortably and securely.