Was going to suggest DMK too. A few of my friends send their kids there and they really like it. We won't be sending our son there though but when we asked, the head-mistress told us that they give priority to pre-existing students ie. if you send your daughter there for playgroup (parent / helper accompanied) or pre-nursery (unaccompanied from 2yrs up) they will automatically (?) be accepted for K1 (2yrs 8months up). I think it's a fairly new school so there isn't as much of a problem in getting in.
If you're going to consider the "local" route (such as Sun Island), there are also two other local schools in the area - Green Pastures and one that is run by Po Leung Kuk. These are Cantonese-speaking schools that teach English 2-3 times a week (half hour lessons). You can't apply to these ones until your child is at the age to start school in the following school year. So, if your daughter is to start in 2013, you can't apply until 2012 (normally October time). We'll be sending our son to the PLK one.