for multimedia usage consisting of ripping,converting movies go for INTEL
well as for ur budget its kinda midrange so u cant expect all wht u want in 25k
well i wod say go for a 3ghz proccy with a asus/msi 915 mobo
this wod cost u abt 13.5k
as for a monitor check the prices @
http://business.vsnl.com/deltapage
Combo Drive --> liteon/sony
5.1 speakers from creative wod cost u abt 4k