I would imagine it depends on where you are in the country and also what type of fittings you want included. I know an excellent electrician who has done alot of work for me an my friends and he charges in and around the 3k mark. Also, he's not the type who just wants to take the easy way out. Will always offer advice on fittings, placements and overall look etc..
3 bed old cottage in CountyDublin cost us 3k last year. This was a relation so we knew we were not being ripped off. TIP: Cover all your furniture in plastic sheets (get them in any hardware store).
This really depends on the way hte wiring was already, ie if there has been layers of plaster caked over the existing cables then the work will be alot mor expensive then if cables can be lowered from roof/ceiling through cavities.