Hey PT, I really like the look of the Smith's for small work! I'd love to hook one of those up to my Oxy rig from time to time.
There've been many pictures posted already of the various rigs to attach a hose between the propane tank and torch. Those seem like a nice alternative.
I use the little "Creme Brulee" torches myself. Wifey still hasn't discovered ours is missing from the kitchen and the kids have been asking for Brulees, so I'll be in trouble soon and have to buy a new one for the kitchen. Or maybe not. The infamous 800watt, an eBay seller many have complained about, gave me 2 of these little torches for free on an order recently. I've always had good luck with him, FWIW.
Lastly, I managed to saw my Tig torch hose in half (don't ask, rolled something over it carelessly) so was forced to drag out the oxy-acety rig. I hadn't fired it up in probably 15 years. Did a little soap bubble test at first (skeptical about the old thing), but it ran like a champ and there was a lot of gas in the bottles.
I really enjoy gas welding a lot. It's so tactile and visual. Tig is a bit sterile by comparison. I really should do more silver soldering on projects. Need to track down a good price on some silver solder. Seems I always just bum a small piece from a friend and never have it available when I could use it.