SOunds like a great suggestion to me.... I have high speed- but I have to pick up the signal on my laptop thru my wireless router. If my desktop is being used, I can forget about trying to download anything....
When I got my Sweet Rewards, I bought a bunch of stuff, only Nick was on the desktop- all of my downloads had corrupt files in them because we were both on the internet.... and they took forever to download! Once he got off, though, and I was the only one on the network, some weren't much faster because they were large files....
Altough, I've got an opionion on the small alpha files! It drives me nuts to download a 6 mb file, and unzip it, organize it, etc.... when it could've just been added into the 30 mb elements zip.... kwim?
On this topic, there's no right answer, however, since there's so many different type of internet connections available.
On my own personal site, I don't go over 50mb. files, and I've only had 1 customer who had trouble with downloading a 37mb file.... I think most shops try to stay below or right at 50mb a file....
