Stick to old fashioned measures...
Just get a copy of httpwatch/fiddler, (wireshark too if you know what you're looking at), and test several hits with a few random sites. Preferably the big sites that tend to have more capacity (news sites, apple, etc..).
Not only will you get the big picture of how long it took to load, but you can also focus on what took too long to load - if it's a network or site issue, name resolution, etc..
ICMP is also your friend (latency test).