Hi Parker,
I was just down in this area (stayed in Delray, but played as far north as palm beach gardens jupiter) and can provide a whole slew of recommendations. feel free to PM me and we'll exchange email addresses.
If not, here are some thoughts:
I didnt play abacoa but i've heard nothing but great things.
i have played madison green in years past, really pretty and very difficult, though a touch "tricked up" so to speak.
the eagle course at president CC i played this year and is right in west palm, very affordable and an excellent layout. the condition could be a touch better, but for the greens fee i paid (65 or so) it was fine.
osprey point is down in west boca but is an awesome collection of beautifully maintained 27 holes, and is challenging if you play the right set of tees.
north palm & west palm are true muni's, so while both are nice (esp north palm) be weary of pace of play.
also, westchester CC in boynton beach has a nice collection of 27 holes and is properly priced for its condition. i would avoid polo trace as its overpriced given the condition.