Hi Chitra,
The 2960 is an excellent Layer2 switch that would fit your requirement.
The 2960-S is stackable and had better PoE options. Assuming you only need 1Gb uplinks to your 3750 core switches, the 2960S-48FPS-L is probably the best for you.
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-series-switches/product_data_sheet0900aecd80322c0c.html
cheers,
Seb.