Help: Need a new router

Hi all,

I am using a wired broadband connection (Airtel; Beetel 110BX1 ADSL2+Router<dunno what this means!>) and looking forward to set up wifi at my home (network range should be around 30 ft).

Would i require a modem+router or just a wifi router? Please let me know the best options available as per my needs. I would be very grateful!

Thanks.

PS-Budget not a constraint.