Source: http://feeds.gawker.com/~r/lifehacker/full/~3/356287890/hearwho-converts-text-to-mp3
Free webapp Hearwho converts text you enter into an MP3 audio file you can download. Select from a male or female voice, English or Spanish text conversion, and choose the quality of the resulting file at Hearwho. Similar to previously covered VozMe, the results are no substitute for a professional actor hired to read an audio book, but if you've got text you'd like to listen to while commuting or working out the results aren't bad at all.
HearWho.com [via Techie Portal]