Downloadable word lists? [duplicate]

I would like to download an English dictionary -- not just a word list -- in a structured format such as TXT, XML, or SQL.

Specifically, I need phonetic pronunciation and parts of speech (definition is not required).

Surprisingly, I can't find this online anywhere. Wiktionary is available for download, but it only the mediawiki articles themselves. Crawling all articles and extracting the phonetics and parts of speech would be a huge exercise.

Is this available anywhere? I don't mind paying.

Note: cross-posted on StackOverflow.

Ask around on the Omega Wiki, formerly known as the Ultimate Wiktionary or WiktionaryZ. Basically, they collect data from all the various wiktionaries, and make it available in a relational database.

What about WordNet? It's released under a BSD-style licence. I heard somewhere this was the basis for the WordWeb programme.

WordNet® is a large lexical database of English. Nouns, verbs, adjectives and adverbs are grouped into sets of cognitive synonyms (synsets), each expressing a distinct concept. Synsets are interlinked by means of conceptual-semantic and lexical relations. The resulting network of meaningfully related words and concepts can be navigated with the browser. WordNet is also freely and publicly available for download. WordNet's structure makes it a useful tool for computational linguistics and natural language processing.

I would suggest these databases formatted for the DICT protocol servers and clients, but I don't think they meet your criteria.