By John Hielscher Staff Writer for Herald Tribune By John Hielscher Staff Writer The cute fixer-upper house that buyers were able to grab for $150,000 last year now costs closer to $190,000, and the price is still climbing. "That nice, slightly older pool home for $200,000 is now $230,000 to $240,000," says Realtor Charryl Youman. "In just one year, the values are up nearly 20...