QUOTE(Not A Number @ Nov 5 2006, 09:45 AM) [snapback]747926[/snapback]
It doesn't come in kilo tubs though does it? It comes in little disposable bags weighing a couple of grams. You'd need
thousands of them for it to make an appreciable difference

You're looking at about a tenner/kilo trade price for silica gel.
Also don't forget that silica gel and other dessicants can be dried out and re-used, just pop it in the oven on a low heat for a while. So you only have to buy it once.
I agree with what has been said by other members though, only speed up your drying if you have no other choice - it's best to control your environment to give a slow, controlled drying process over a period of several days. It makes a major difference to the final product. I'd test it with a small amount first in a sealed container. You might alternatively want to look at food dehydrators and also the suggestion of using a small heat source such as a power supply or set-top box.