Fellas,
I picked up a good "Economy Twin Cartridge Respirator" the other day at Meijer (our all-in-one grocery, furniture, hardware, health store. I know. Don't ask!). It is from a company called AOSafety, and it is NIOSH approved for paint, solvents, thinner, dusts and mists. Item/product number 95115.
I paid $20 for this. It is a bargain.
Review:
The mask facecup is a soft plastic, fits well. It has a 'roll under' style of design that seals well to the face, however, I found that it doesn't work well with a beard, can't get a good seal (but that makes sense). The two-strap system works well to hold it comfortably in place, and the straps are elastic to help with the tension.
I highly recommend this mask to you guys out there that know you should be using a respirator, but haven't been able to afford the mainstream models at $70-100.
Some purchasing links:
http://shopping.msn.com/prices/shp/?itemId=22271511
http://www.abccatalog.com/store/viewitem.asp?idproduct=7837195115
http://ace.imageg.net/graphics/product_images/pACE-989509reg.jpg