I will be flying into Paris ORLY from Naples and staying just one night before catching our flight back to Canada after our trip.

Not really knowing where the airport is and what is around it I was wondering if anyone had advice regarding where to stay

cheers
naneu

It depends on your definition of inexpensive, but there is an Ibis hotel at the airport (within the general grounds, with free shuttle buses) and I paid ~65€ for a night in late June.

www.accorhotels.com for Ibis and other airport hotels of this large French hotel chain.

Orly is very close to the Latin Quarter via VAL people mover to Antony and then RER B - so staying in Paris proper does not mean a long commute - VAL goes right into the terminals.

Priceline has an Orly zone. No recent bids reported on biddingfortravel.com, but they still list the Hilton Orly as a possible 3* there.

The Formule 1 Hotel at Rungis is part of the Accor chain mentioned by PalenQ. Strictly budget rooms (€30).

However, if you'll arrive at Orly by the afternoon, I'd recommend you go into Paris and stay there (unless you have a really early depature the next morning). IMO, one night in Paris is worth a few extra euros.