if pang document man lang bro, try HP NC4200. makakuha naman siguro ka ana ug 10k (not sure sa market diha pinas, though no harm to check) or ASUS EEEPC with almost on the same range siguro sab na. happpy hunting na lang nimo diha...
if durability sab, try IBM T-series. bisan karaan na mga model pero sulit na sya unless you're willing to shell-out ur 30k budget. ciao