Trinity Halls - When should I hear?

I applied for Trinity Halls yesterday and I'm just wondering when I should hear back by? I was reading through some forums here and heard they can be a bit lethargic about getting back to people. I've been looking at other sources of accommodation cause I'll be coming from Cork, but it's a bit hard to sort something when I've no idea what position I'm in! Anybody have any experience with Halls and when I might hear back by?