How do I polish a hardwood floor (without having to strip the wax and without having to reapply wax)?

A janitorial service said that they could vacuum, mop and polish hardwood floors, but bc I am short on $ (no paying job at the moment) wanted to do it myself on a weekend. Any suggestions regarding supplies/equipment I need and technique involved will be appreciated (I am not a professional housecleaner).

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

iRobot Roomba 440 Rechargeable Floor Vacuum Robot    US $69.95

Dyson Ball DC24 Multi Floor Upright Vacuum CleanerNEWNO RESERVE    US $295.01

Dyson DC25 Multi Floor Upright Ball Vacuum CleanerNEWNO RESERVE    US $355.52

Dyson DC07 All Floors Allergy Vacuum SAVE    US $219.86

Dyson ball DC 25 MULTI FLOOR VACUUM BRAND NEW UNOPENED PERFECT CONDITION    US $440.00

Neato XV 11 All Floor Robotic Vacuum System    US $249.99