Driver Detective is what I use.

My dehumidifier (can't remember the make) has an accessory in the form of a shallow funnel and plastic tube.

The funnel can be inserted at the back of the machine where it sits underneath the condenser to catch the distilled water and run it off to a sink or other receptacle like a 5 gallon container or similar.

Running the water off to a drain means the machine can be left on to maintain the relative humidity of the room 24x7.

This 360 degree pano lens looks neat too.

Cheaper than the motorized option I linked to, but I don't understand the benefits of the 45 degree tilt. I thought that panos are best taken with the camera in portrait orientation.

Shame they didn't show the result in the first video though.

I suppose the question is, do you yet know why you would need to use ND filters?

If you don't, can I suggest you do some reading and find out exactly what they are and why they might be used.

Neutral density filters come in various types (ND, graduated ND Soft transition, graduated ND hard transition), shades (0.3, 0.6, 0.9 etc), sizes (round, square, rectangular), and materials (resin, glass), not to mention varying colour casts. You made find there are many more than 50 shades of grey, blue, and green.

You really need to know how and why you'd use them before shelling out money, perhaps unnecessarily.

Finally, remember, if you buy cheap, you will usually buy twice.

Not at all, it can be done with a DLR. Yes, even a Pentax.

All you need is one of these, a DSLR, and a decent telephoto lens. Images of static scenes are simpler of course.

Much more expensive options do exist, like the systems based on multiple cameras and a conical mirror arrangement to produce some of the 360 degree panos.

That's relatively easy to do on a smaller scale. You just take a lot of images and stitch them together. Those kind of images, of which there are plenty, are done with a special motorized bit of kit costing around £800.00.

You could use say a DA*300mm lens and take a whole series of images in rows and columns, then stitch them together.

Wow, you are clearly worried about your camera gear suffering in the climate within your house. Personally, I'd be more worried about my own health, and move, because it sounds to me like your house is a health hazard.

If you have various mould spores growing on furniture, what are they doing to you and your family?

If you can't move, I suggest getting some heat into the whole house, running a good dehumidifier to dry out the general atmosphere, and/or improve the ventilation within your home. The whole family will benefit, not just your photography gear.

I think you might have missed the OP's point that he wants to spend more time in the open air and less time sitting in front of his computer.

I can't argue with that, so, one word to the OP, Lee.