I have a 500GB Maxtor SATA drive attached to my Desktop computer. It has an ext3 partition that I need to access over the network (Wifi). When I transfer data to the drive by the direct connection to it (over USB), the transfer rate is on average 10MBps, but when I transfer data to the drive over the network the transfer rate is dismal (about 1.3MBps)!

I am accessing the drive using samba. What other ways exists to access my drive over the network, and which is the fastest one?