心機一転

Excite翻訳: Changing mind
＠nifty翻訳: Mental revolution
Babel Fish: Heart machine complete change
Google翻訳: Clean start
Yahoo!翻訳: A mental revolution
OCN翻訳: Mental metamorphosis
Windows Live Translator: Mind function change

Summary:
It seems that Excite, @nifty, Google, Yahoo!, and OCN have a special expression corresponding to this saying.

Reverse Translation)
Excite翻訳: 変化心
＠nifty翻訳: 精神の革命
Babel Fish: 中心機械完全な変更
Google翻訳: 清潔度を開始
Yahoo!翻訳: 精神的な革命
OCN翻訳: 精神的な変貌
Windows Live Translator: 心の関数の変更

Summary:
Unfortunately, no service can reproduce the original Japanese expression.