I have just been doing some research on hydrobaths myself. I have looked at fidos, conmurra who is now hydrobaths australia and The Barf Shop.
My personal preference after checking them all out is conmurras by a long shot.
The baths are really well made, the owner Jose was only to happy to take me around the factory and show me how things were done, believe me he doesn't take any short cuts and takes pride in what he is producing - only the best parts are used and these baths are built to last.
When I was doing my research I also spoke to many groomers and they ALL recommended the conmurra baths.
I have put my order in for my custom made purple bath and I can't wait to recieve it. The conmurra bath is particulaly good for dogs with thick coats (I have Malamutes) because the wash & rinse tanks hold heaps of water .. 30 litres to the wash tank which is awesome the barf shop models wash tank only holds 10 litres.
So anyway for a hydrobath I say Conmurra or as they are now known Hydrobaths Australia all the way their website is www.hydrobaths.com.au.
As for a dryer I also did my research on these and the two that the professional groomers where recommending where the double K Airmax (which is the one that I have bought) and the ezycoat 2 speed cylinder model.
Hydrobaths Australia currently recommend and sell the ezycoat dryer with their hydrobaths if you require one but he is looking at the double K dryers now as he has had really good reports on them.
I don't think you could go wrong with either of these two.
Good luck with your purchase whatever you decide and you'll have to get back and let us all know what you decided on in the end
Cheers
Witchy Woman