I've found it quite easy to get places by bus; just check the schedules beforehand because depending on where you're going there might only be one or two buses a day. On the other hand traveling by bus takes significantly longer than by car. So if you want to visit a lot of places during that week it's worth it to rent a car. If you decide to visit a couple of places for a couple of days each, than the bus is fine.
Wow -- I guess I was lucky to have a full size spare tire included! That would be a good thing to check for at the time of rental.

We recently rented from the Enterprise Rental Car at the Dublin Airport. We chose them mostly due to the fact that I could use American Express points to pay for the base fee of the rental (although we had to pay for fees/taxes separately). They were great to deal with and I was very pleased with the overal experience. We had bought a separate insurance policy from TravelEX but due to the fact the paperwork didn't actually say it covered us in Ireland the rental car company insisted we also get their insurance, but the weekly rate wasn't that bad and we felt it was added protection. Basically we had a Toyota Avensis (automatic) that handled very well and we had no problems at all with the car. Typically I would have shopped around more for a better deal on the car, but the fact that I could use AMEX Rewards to pay for it was a big seller in my book.
mysterychix

Hi There,
I used this site before. www.reservacar-dublinairport.com It includes the major companies. they aren't expensive.

Hi,
Wondered if anyone can offer myself some advice. I am flying into Dublin and flying out of Belfast in April. I plan to hire a car for those 6 days and am now looking for car hire companies that offer one way car rentals. Has anyone had any luck? I have come across very few and the prices have been quite interesting!
Cheers!