You can no longer get new semi-D below RM700K or 2 storey link below RM300K at Saujana Impian & Prima Saujana Area.  You probably can get below that further down the road a little bit (past Kajang Prison) such as Jelok Impian or Kajang Perdana.  SI & PS area is outside Kajang town and more towards end of Cheras.  Now with SAGA highway to KL, LEKAS to Seremban and the Silk Highway to Sg Long / Balakong.. plus Tesco, Giant and future LRT lines.. I think the price will continue shooting up..