it depends on u what career u wanna pursue, if u wanna be a S/W Engineer. and be an employee of TCS or Infosys or Wipro etc then go for a combined BCA + MCA 5 years program which many good universities and institutes offer. or u can do BTech in Comp Engg (4 years) then go for certification programs like CCNA or MCSE coz there will always be a demand for a networking or a systems professional. the peeps who told u that BCA is dead don't know the facts and the fact is that NASSCOM predicts that there will be a huge demand for IT professionals for the next half a decade atleast. so there u go, the IT bubble isn't gonna burst yet. and last but not the least, listen to all advices but follow ur heart and ur dream.
wishing u success in all ur future endeavours.
cha.