yes- you need a vaccuum. I try to steamclean every week tho too....( blah) but I am not good about keeping food out of the living room- and I have a dog that is peeing on the carpet!!!ACK! just one room you will not have to do so much. I also just do the spots and then my mom comes with her shampooer and does that. our whole house is carpteted tho- EVEN THE BATHROOM!ICK!
Good luck with the hardwood floor house! AWESOME! For one room- you could go with a smaller one than too.... you can get it for under $100-( i think 60-75?) I got mine at a yard sale for $10- I would also try
www.freecycle.com. And check the for sales in your newspaper. You could also talk to friends in your area about swapping things- like childcare for use of their shampooer or steam cleaner?
or buying one together.( splitting the cost and sharing it since you do not use it everyday)
You should be able to get away with a smaller one since it is just one room. Is there hotwater access nearby it? even if it comes from the laundry.
Good luck. I am a carpet hater. LOL!