pixiefish - the sergeant didn't speak welsh either, he could tell I was English because I have a home counties accent. That was a couple of years ago now and I now have a Cardiff lilt and have picked up a few local colloqialisms like "by here" and "now in a minute" but I still sound English, that's not usually a problem in Cardiff but 2 miles over the mountain in Caerphilly is more of an issue.
Anyway, I thought I'd like to add some of the lovely fab things about living in Cardiff, Wales:-
Free Museums - we love St. Fagans, Big Pit and the Museum of Wales in Cathays Park. They've all had a big revival since being free and that's such a good thing to teach children to be interested in all that stuff.
Cheap Prescriptions - £4 now but will be free to everyone in a couple of years
Nursery schools within the primary schools not so many private ones. My dd goes to such an amazing nursery in her primary school, I think it'll really help the transition next year to reception. Also, her teachers are Welsh and are amazing. They should win an award! She learns so much and can sing 4 or 5 different songs in Welsh already and knows all the main welsh words to get by. I think learning another language is so beneficial at their age.
The fact that boys love their mams. Which basically means they have more respect for women in general and tend to like a plumper more cuddly woman (works well for me)
Following on from that, the fact that everyone is so sociable. As Sorenlorenson will say, socialising in Cardiff is a blast! Its the first place I've lived where people of all ages will mix very happily in bars and clubs with their being plenty of grandparent types mixed with 18 year olds and all the ones in between.
Match nights. I don't particularly like Rugby but the atmosphere in town when there is an international is amazing.
The fact that the Welsh are so friendly (certain moody coppers aside) and chat to each other at supermarket tills etc. I got a shock when I went back home and tried to do the same, people were so much more closed.
The fact that the Welsh are generally more accepting of children. They always stop and talk to you if you have little ones with you.
Thats just a snippet. I think Cardiff is the nicest place to live and don't want to move again, there are lots more fab reasons too.