try to do a ping to tf2.trashedgamers.com
It's a TF2 gaming community located in NJ, USA. I always get around 100ms and it's a good way to judge how the ISP perfomrs locally due to differences between the ISPs.
A friend on VM (previously NTL) gets 15ms higher than I do.
Pinging trashedgamers.kicks-ass.org [71.251.204.27] with 32 bytes of data:
Reply from 71.251.204.27: bytes=32 time=100ms TTL=51
Reply from 71.251.204.27: bytes=32 time=100ms TTL=51
Reply from 71.251.204.27: bytes=32 time=100ms TTL=51
Reply from 71.251.204.27: bytes=32 time=107ms TTL=51
Ping statistics for 71.251.204.27:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 100ms, Maximum = 107ms, Average = 101ms
Do ping xxxx > file.txt to get cut and paste results
20Mb Virgin media.