i hear what you're saying fieldcorbett,
design is indeed a speciality, and not that many companies that do design and development really excel at the design any more.
i think that all you need is a layout template though, since most sites look the same on every page these days.
that's becoming quite a common task these days - i've heard of several companies outsourcing the design work to a specialist and getting the psd file back and converting that themselves to xhtml/css. if all you need is the psd, you should be able to get what you need without breaking the bank.
afraid i only know of one good designer and she is snowed under at present, but i'd say if you rephrase your requirement to just a layout, and post it on the likes of creativeireland.com and freelanceireland.ie (seems more active recently???) you may track down the specialist you're after.
i'm sure others can recommend better resources though - are there more artistic equivalents of scriptlance etc??
it's nice, handy work for those who can get it and it will make a *big* difference to your site - happy faces all round
good luck!