Please recommend me a posh but affordable hotel in a good spot in Venice?

Ta

We stayed here.

Very central for St Marks Square etc. and was reasonably cheap as far as I remember.

We stayed here

friendly, excellent service.

Stopping over in Venice after all the tourists leave at the end of the day is excellent

We stayed at Palazzo Priuli in the new (Ca Priuli) rooms. The older rooms were all booked but it's in a quiet area and very comfortable.

We stayed here http://www.tripadvisor.co.uk/Hotel_Review-g187870-d279286-Reviews-Liassidi_Palace_Hotel-Venice_Veneto.html

Central but not right on the Grand Canal. Nice brekkie, clean, friendly staff etc.

The missus took me here for my birthday weekend:
Hotel Bella Venezia
Really nice !! Very good location, nice rooms, good breakfast

We stayed here Boscoli Bellini

Right on the grand canal minutes from the station and easy walk to all the attractions. There's a roof terrace. Nothing fancy jsut a big balcony overlooking the canal….great to sit out with a bottle of wine and a chill, but a difficult to find so ask at reception.

Prices varied so try and shop about for a decent deal.

We stayed at the San Clemente Palace amazing if not a little pricey.

We stayed at the Gritti Palace, sounds rough but its five star and not rough at all, the complete opposite of rough.