Baja wouldn't be my first choice. Not knocking them, but I would look at a few others first.
Some good 27-29 foot boats that I would be looking at:
Hallett 270
Magic 29 Wizard (my first boat and it was great, find 2001 or newer)
Ultra 28
Shockwave 29
Lavey 2750
Formula 272 Fastech
That should get you started.
With the 2 you listed, I would look at the Formula or Hallett first. Should be a good number of Formulas to choose from on the used market.