I swear radio buttons pucker up the closer my mouse gets to them. Aside from the lack of good CSS options for radio buttons, they demand a certain level of commitment from the user. Unlike our promiscuous friend the checkbox, once you manage to jab the...
UPDATE: This is now available as a free ASP.NET control. Recently, Joe Stagner created some videos and talked about 4 upload scenarios that provide an AJAX-like file upload experience. I've used or looked at all of those options at least once or twice...