I made several "poor man's weatherproof enclosures" about a year ago, and they are still working perfectly. Here's what I did:
I went to Lowe's and bought a cheap, square, halogen single head flood light. (At the time it was on sale for $10.95) I removed the bulb, reflector and wiring, in other words, all the "guts."
I placed a DCS-932L inside, after removing the camera's swivel mounting bracket. As it turns out the 932L was little too small, so I used a small bit of Velcro on the top and bottom of the 932L to keep it from moving around inside the housing. But once inside, when you close and secure the glass door, it becomes completely weatherproof.
Unfortunately there is no way to get the power plug fed through the light housing arm due to its size, so I cut the white cable in half, fed it up into the light housing, then reconnected the positive and negative wires in correct polarity. (This procedure is ultimately necessary anyway, because you will need to feed the wire through a hole in the wall of the structure you plan to mount the light housing against, unless you drill a really large hole, which is not recommended.)
One important point -- we all know that the ac adapter power cable is not very long. Even though you have to cut the cable to run it into the light housing, don't be tempted at that point to extend it, or you will end up with a voltage drop which will be especially noticeable when the IR's turn on at night. Instead, extend the "A.C." side by using an extension cord. That will keep the 5Vdc voltage constant.
I wanted to attach a few pics of two DCS-932L's mounted to the side of my backyard shed but I couldn't find an option to add attachments here. (If anyone wants I can email them to you.) Despite the fact that they are both inside of aluminum light housings, the signal does not appear to be degraded, as they are both about 30-35' from my house, and they both work just fine.
In my case, the light housings are a dark bronze color and (of course) the 932L's are white, so they are a bit noticeable inside the housing, but I could have either (a) bought white housings, or (b) threw some dark-colored spray paint over the camera body, in which case the 932L's would have "disappeared" inside the light boxes.
Either way, they look like normal outdoor flood lights, and are 100% protected from the elements!