K750i is passe now, the market for GPRS & MMS is upon us now. Cos the free lifetime incoming, 2 years incoming etc plan market is saturated.
Next competition point in the new academic session (cos students use the maximum mobile phones) will be the battle ground for MMS & GPRS Services. So make sure u get a phone with EDGE, cos the competition ground for EDGE will come in the indian market only after March 2008 or so....it will take sometime for GPRS to be widely acceptable
A better option W810i but it's out of your budget, Camera isn't everything for everyone, do give a look at Nokia 5500