In reply to Andy Moles:
You have to weigh up what your priorities are- if you really want a trendy area you're talking West End, Shawlands, City Centre Glasgow. You'll pay a significant premium to do that though.
Paisley isn't the most appealing place but it's definitely got its better bits. There are tons of reasonably priced flats to rent in the South Side of Paisley or the modern developments in the West End. The town centre itself isn't worth drinking in if you value your life, but it's a 10min train journey to Glasgow...
I'm not a fan of Greenock, the Port or Gourock so I personally would not choose to live down there. Just like Paisley, same social problems but further away from Glasgow...