Comcast has been offering some intriguing high speed internet offers lately (actually, I get their offers about every other day in the mail). In particular, they are offering an Extreme internet package with 50 Mbps down, and 10 Mbps up.
I have been using this service for about a month now, and I am very satisfied. Although I rarely see the advertised download speed, I have occasionally had downloads at 30 Mbps.
My typical speeds are around 20 Mbps down, and 10 Mbps up. For example, a 30 Mb file takes about 12 seconds to download, or about 24 seconds to upload. And these are actual speeds – measured using SFTP with large files.