Option 1: Kegerator. Can be bought or built (google for DIY Kegerators and you will see many more options). Building gives you the option to find a fridge that fits into a random corner and holds the amount of kegs you require. Chest freezers (keezer) make great kegerators and they can still be a table.
Option 2: Store the kegs in the attic, run pipes to your taps. Use a cold plate or jockey box to chill the beer.
Option 3: Same as option 2, but use an electric chiller. Those tend to be quite expensive.
Remember that your kegs should be stored upright and that you have to have your CO2 closeby. (There are exceptions to both).
I would first find out if I have place for a fridge/kegerator/keezer or if you have to store the kegs (and CO2) in some other location. Ask the wife is she agrees :) Now decide if the location is good for serving beer. If not, work out how to get the beer to a (again, wife approved) beer dispensing location. Decide if the beer will be chilled in keg storage location or beer dispensing location.