Turn off desktop search

>Hey Gang!
>
>Just bought a Gateway Desktop - the DX4720-03 Intel Dual-Core ES200 - 4 GB Memory - 640 MB HardDrive with Windows Vista Home Premium 64 bit (SP1).
>
>Hooked it up to the home network using Ethernet. Also connected to the home network is the older eMachines with Vista Ultimate on it (Pentium D 3.2 Ghz single core - 2 MB memory - Windows Vista 32 bit Ultimate).
>
>In moving the data over from the old PC to the new - the fastest speed I could get to move the data was around 3 MB / sec..... very slow. Just copying around 250 Gigs was going to take about 23 hours (YIKES!!!).
>
>I went on the internet, and many others have had this nightmare also.... but I never found an answer to get the speed up (isn't the normal speed over 10 MB/sec for XP ??)
>
>What do you think? What should I look for to speed things up?
>
>Thanks!