I have Reliance LXU 800 modem, 1X speed, 153 kbps. I use to recharge of Rs. 801 ( Unlimited usage for 1 month ) or Rs. 1499 ( Unlimited usage for 3 months ).

As you know it haven't much speed. So I am thinking about changing modem.
Which one should I take ?

I need much speed with unlimited usage wthin Rs. 800 per month or Rs. 1500 per 3 month.

What do you think ?

And Vodafone 3G network is not available in our area, so give any other suggestion................