You could chance arriving on spec and asking them for the best price available for the night. Its unlikely any of the above mentioned will be full mid-week this time of year and may be able to give you a better rate. I do this every chance I get and get some great savings. PS Its better to call in person rather than ring them. Saved €30 on this tactic alone recently in Cork.
Thanks for tip- but would prefer to be relaxed when we arrived in the knowledge that we had a bed for the night!
So would like to book today or tomorrow if possible
The Clubhouse Hotel in the city centre have a sign on their railing about a walk-in rate - can't remember how much it was though but I do remember thinking that it was very reasonable and they are very central. They don't have a leisure centre which some of the more modern ones do have to offer, so I suppose that could also be why they seemed much more reasonable.
The Days Hotel is really out of the way if you want to walk down town. If you're just arriving by car and sleeping there, it's probably ok. It's really an industrial estate type area.
I would second the ones Leo mentioned. What about a B&B?
I find the reviews on to be generally pretty good.
The Days hotel is on the ringroad outside the city. It would be a 20-30 minute walk into the city centre and not a particularly safe (busy road) or pleasant walk. Taxis would be quite cheap though. The hotel is in quite an industrial estate area - the nearest restaurant is a drive-in KFC!
The Clubhouse isn't a particularly nice hotel - it's quite old-fashioned and dull inside. Try searching for guesthouses rather than hotels.