I use a regular strainer and am quite happy with the results I get. (Ps...may help to heat your weed a touch before straining....make sure its REALLY dry)

Here's a thread that my hubby and I did on making capsules after getting the excellent recipe from THIS thread.....worth a look through.

Edit:.....umm...duh.....http://boards.cannabis.com/concentra...-s-recipe.html