Tek7 said:
DC Talk > all other Christian music, at least in terms of raw musical skill.
Gotta agree with Tek here, at least in some regards. DCT, for a time, was definitely top dog in the christian contemporary music world. Their productions values were tight, they were lyrically deep and nimble, and had a fan base across ages, races and borders.
If DCT can be faulted for anything, it would be musical originallity. DCT basically aped, emulated, sampled, "homaged" and essentially ripped off whatever the popular music style of the day happened to be. Compare "Jesus Freak" to Nivana's "Smells Like Teen Spirit", or "That Kind of Girl" with any Bel Biv Devoe track. Toby seems to have continued the tradition, doing that whole nu metal/rap rock thing.
But they were great lyricists and they knew how to write a good pop song. Anybody can write a punk song - that's what punk's all about after all; power chords, DIY, anybody can grab gitar and rock out, etc. - but to write a pop song that can get stuck in your head for weeks on end...that takes REAL musical skill.
DCT provided an christian alternative to a generation of kids who wanted comtemporary stylings with a christian core, and DCT was insanely sucessful at doing it. Fault them for not being original musically, but don't fault them for being a pop band.
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re: electronica...while Kraniac's correct about the use of the term, and it's a good catch all term, "electronica" as a word for electronic music actually originated as a marketing word from music press and major labels. They used it to describe everything from the rock 'n breaks of The Prodigy to the stadium thump of Underworld to the dark, moody musings of Portishead.
"Electronica" was going to be the "next big thing" after grunge went belly up. While The Prodigy, Chemical Bros, Underworld and others (Propellerheads, Crystal Method, Fat Boy Slim...funny how a lot of these bands were filed under "big beat" back in the UK) gained some success in the main stream and found a home in the record crates of alternative rock djs (at least that's what happened here in Canada), the faceless, egoless nature of the music didn't quite wash with the masses, who were use to photogenic front men and lyrics, not geeky white guys hiding behind lots of gear.
But then 3 teenagers came along with a little ditty called "Mmmm-bop" and the rest is boy/girl band history...so much for the electronica revolution.
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I promised myself I'd keep this short, but I'm failing...
Kraniac, I can't believe you didn't mention
Andy Hunter, current poster boy for all christian electronic music. And you also didn't shill for
Tasty Fresh, a website dedicated to all things that intersect between christianity and club culture. (Be sure to check out the forums for dj mixes, internet radio stations and indie productions, plus lots of other recommendations on christian artists). What kind of community booster are you?

(Thx for the props, BTW)
Other christian artists: Look for Hydro (no link, because they don't exist anymore), a UK techno/trance/breaks outfit from a few years back. Andy Hunter used to be their studio assistant. They have two albums, Spiritualisation and Aborgination, the latter being the better of the two.
I also understand that A Skillz, of the dynamic dj duo of Krafty Kuts and A Skillz, is a christian, although they produce mostly old school party in the park family block party hip hop heavily informed by New York in the 70's.
You can also check
Uberzone, a christian (at least I believe he is) doing his techy breaks thing from within secular club culture, and
BT, who isn't a christian but is very spiritually minded and makes fantastic epic house/trance/nu skool breaks/lots of other stuff.
And I will also second Kraniac's recommendations of Hybrid, Theivery Corp and the Verve Remixed series.
K, c'est ca for now...have fun exploring all those different groups!