I have chose wireless. very good
I once asked this problem here.
Now it has been resolved.
My husband bought a wireless router about 110 dollars. and a wireless bridge 130 dollars.(can also be used for PS2) They work very well. We bought them from CompuNation. Because Futureshop has no such things or much more expensive.
BTW, you can also use wireless phone jack, which can turn any electrical outlet into a phone jack.
Therefore, you can have high-internet speed service and phone outlet everywhere in your house. even in your back yard.
Therefore, no matter you buy an inventory house or an old house, you can resolve these two big problems without breaking any walls and no lines neither.