Try Molly Malones, review below.

http://www.holidaytruths.co.uk/reviews/india/goa/calangute/molly-malones-hotel/

Hi, This year we also got a flight only plus 1night dorm with directhols and prebooked with Olympic holidays 14nights in Park avenue hotel for less than 140pounds per room.
It was a good hotel, standard 2 star, and to be honest ive stayed in worse 2 star hotels.
I really enjoyed it, i would go back next Jan but i want to be situated further up Baga road.

Park avenue is in Calangute, near the Roundabout where the log cabin is.

Why dont you try going on Lowcostbeds, they have reasonable priced hotels.

Nicola

There's plenty here - most with e-mail & website address.

North Goa Hotels

Hi Neil, we got a cheap flight and got Horizon hotel Calangute for £100 a week for the both of us got a good room overlooking pool would stay there again.Allan.

Thanks for all the info. I'll spend a little time checking it all out.
I've found 14 nights in a dormhouse for £405 pp so this might be the way to go and I'd rather give money direct to the hotel than through an agent.
I'll let you know how I get on
Cheers
Neil