Ayutthaya guesthouse with internet


I need to spend about 3 to 4 weeks in the Ayutthaya/Bang Pa-in area preparing for our trip. I'm looking for a guesthouse or hotel that has internet access and private bath. Should be comfy and clean and under 500B. (I know, I know, I'm spoilt by Phannu House in Mae Sot...) Any recommendations?

The only one I have found is Lima Place, but the dual pricing and having to buy prepaid cards for net access put me off.