Don't go for Blacon!!
I second North Wales - its max 20 mins/half an hour to Ellesmere Port with good transport links.
Look around Mold, as anywhere else into Wales lacks the motorway and will take you that bit longer to get into work (eg Ruthin and Denbigh, although they are - in parts - very nice).
There are some lovely villages and its a lot cheaper than Chester and some parts of the Wirral.
Stay away from Deeside, Queensferry, Shotton or anywhere along that part of the Chester bypass.
Look at Northop, Sychdyn, Mold itself, Buckley (in parts), Ewloe, Drury. Good value, decent transport links and I hear the local comp is pretty good these days.
Nercwys, Lixwm, Nannerch, Cilcain and Hendre are very pretty and rural, and a little bit more expensive.
pm me if you need any more info on this area of Wales or Chester (local born and bred!)
HTH