I would strongly urge you to attend the National Home Show coming up in April at the CNE.
http://www.nationalhomeshow.com/ME2/...1E00279F3D0AC4
They have more hardwood distributors there than you can shake your stick at. You can talk to the pros, do comparison shopping all in one shot.
Can you not refinish the existing hard wood flooring? I did my 1920 oak floors and they pretty much look like new old floors.
Rent a sander from HD and go crazy.