I'm not a great fan personally, not quite sure why but it just looks a bit too similar to plenty of websites templates that are already out there.
These two designs from WooThemes came to mind as in my opinion they are quite similar, although there is something about them which makes them look a bit 'slicker'. However, the only thing that really matters is what your potential clients think of it.
Personally, I'm quite fussy with design and things have to look perfect, but I imagine most SME clients won't be able to tell the difference and would be absolutely fine with it.
Other than that, to me it doesn't look right to have the website called "Web Design Sussex" but the opening text including "...based in Chichester". I realise that Chichester is in Sussex, but I think the opening line should be "...based in Sussex". Logic behind the reason behing that the domain says you cover Sussex but the opening line implies the main focus is on Chicester. Again, that could just be me with that line of thought though!