re: Any woodworkers out there that can tell me which pocket hole jig I should buy

I use that exact jig in my shop, and it works great. Like TU Rob said, I would practice on some scrap wood first, but it's pretty easy to get the hang of.

Just make sure you secure the jig and wood to your workbench. I opted to use my bar Clamps instead of the kreg clamp, and they work just fine as long as I have it clamped solid and don't get overly forceful drilling the pocket holes.

ETA: as to your question on if it's suitable for cabinets and furniture--I personally think it would be fine as long as you select the appropriate screws and hole depth. I use it to make small boxes, and it works fine. I do, however, use an electric screwdriver to screw the pieces together because the included bit is too long to get into really tight spaces.