We always go at easter too. There seems to be fewer deals around this year than previous, we usually do a package, but this Easter is our first DIY.
Couple of things to consider if DIYing, you might get cheap flights, but you can get stung for transfers or car hire so always take that into consideration.
We stayed here last Easter, which was good as we got a free child place - bonus is that it's all inclusive so you get drinks free all night Hofer Kitzbuhel
Leave it to last minute if you are willing to risk it. Check out the big players, but call them rather than rely on the website - they may be able to sort something for you.
Check out the clearing type places like Alpine Answers, Igluski, direct ski etc...