BUT, if you have tried baking here, cakes, etc don't come out as moist and the texture a bit more rough. so while the flour here to better for you, baking fancy cakes here might be a waste of time and money because they won't come out as well without the same ingredients. if anyone else has had a different experience, let me know!
Baking can be pretty sensitive, right enough. The recipes themselves make a difference. I really only ever use US recipes for baking, because I find British recipes too dry, because that's apparently how they want them. (IMHO, if you can pick it up with your fingers and eat it without making a mess, then it's not a very good cake.) But even with US recipes, it helps if you're experienced enough to have a good feel for the batter consistency, etc. You have to be prepared to tinker a bit, but then, the same is sometimes true in the US (i.e. higher altitudes, different weather, etc.). You might find that, with the difference in ingredients, your old recipes from home are just a little less forgiving, so you have to be more careful with measuring, etc.
For texture, you could try using cake flour instead of all-purpose/plain. Never bothered with this myself, even in the US, but it is meant to give a finer crumb/lighter texture. Technically, it's an extra-finely milled, lower protein flour. Not sure if you can actually find it here (maybe a speciality shop, if you're down south), but this substitute would probably accomplish the same thing:
http://joythebaker.com/2009/09/how-to-make-cake-flour/Also, if it seems too dense/tough, or too crumbly, sugar could be the problem. Granulated here is a little bigger than our regular sugar, which means you're getting a little less in a cup (= crumbly). Caster sugar is finer, which means you're getting a little more in a cup (= tough). So if a particular recipe isn't working, try either switching the kind of sugar you're using, or adjusting the amount a little.
As far as things being too dry, the first thing is to look at how you're measuring. I'm lazy, and often wouldn't bother sifting the flour-- but skipping that can lead to too much flour, which leads to dry, heavy cake. If you're trying to convert between US & metric, make sure you're right, or you could be inadvertently shorting yourself on liquids/fats.
Take a look at your pan size, too. If you used to bake in a 9" x 13" pan, and now all you've got is a 14" x 10" roasting pan, your batter will be spread thinner, which means you'll need to lower your baking temp a little, and probably shorten the time a bit.
You could also try using a little extra butter or oil (but just a little!), adding a small amount (i.e. 1/2 - 1 c.) of plain yogurt/sour cream, or subbing brown sugar for some or all of the white (will change the colour & flavour slightly, so best for chocolate or other dark cakes). Also, if it's a recipe that uses beaten egg whites, try using smaller eggs (i.e. Med instead of Jumbo), and make sure you're not over-beating.
Of course, if one recipe isn't working well, you can also just look for another. Generally, I find cake recipes that use oil are more soft/moist (and also quicker) than ones that use butter. Whatever you do, be prepared to experiment. If you're trying to get something just right, you may need a few trial runs. The good news is, even the failed experiments are still cake, and probably delicious.