Hi
AFAIK its 2948L3 which is the base level which has the L3 support and it goes on top upto 6500 series.
i would suggest to go thru this link to find out different models avl out there and the features it does support.
you can go thru the data sheets of each and every switch to find out the exact feature it can provide..
http://cisco.com/en/US/products/hw/switches/index.html#products
regds