The catch is that there are a lot of boats that size for that budget - depending on age, condition, yada yada. I don't know the Vanguard, sorry, but I own a Pearson 323 - and excellent coastal cruiser - which would fit the bill; a friend has a P27. What they all have in common is that Pearson made solid, well-thought-out boats.
Tartans are very nice, as are C&Cs; you have a lot of choices. My advice is to visit a few boatyards in person; see what's available, get a feel for the different boats. And act fast while the economy sucks and boats aren't selling...