Turrets are better than domes and the 2342's are always my choice unless you are afraid of someone moving it, then you have go for a dome.
Only problem with the turrets are they are kind of big but as long as you don't use a junction box, you can get away with it. I'm not sure if the 4mp domes from Hikvision are mini and if not, the domes will be just as big.
What do you use covering the front of your house?
Aren't the turrets quite ugly? I'm looking at CCTV and like the dome cameras as they are discrete.