Liquid cooling is indeed better
Liquid cooling is indeed a better way of cooling then aircooling, technically speaking.
It is more complex to build-in in your system and to maintain and therefor not that suitable for dummies in this area.
I also agree on the fact that before something enters the market some, sometimes nutcases, make a lot effort and destroy a lot of equipment before a market-suitable product can be released.
The first watercoolers for pc's I heard about, where demolishing more machines then giving them better cooling.
For instance a small element they lacked was mg-probes (mg=magnesium) which caused oxidation pretty fast with people getting up and find their computers flooded.
Needless to say those PC's where trashbin-food on the moment that happened.
Of course you can think of designing better ways to cool a PC.
In this dry-ice, to use the above mentioned example, perhaps could be an improvement.
But if you want to do that, I suggest you search yourself a very good sponsor and another PC, more then one will be needed, then yours to do the testing on and of course a decent, safe, working/testing environment.
Also, always inform yourself very well about the products you want to use.
This is necessary because you have to know in advance what possible reactions might occur in each stage of the process.
You don't want yourself get killed or severally injured over some chemical reactions that you didn't think about.
If you have a design in mind, great, set it out on paper, think about it twice, correct where you think is necessary and when you finally got something that you can build...
Start all over as if you where drafting from scratch.
After that you can start building your first proto and do some real-life testing.
Even then you'll be surprised of all the problems you'll be facing and have to find a solution for.