Xigmateks are really decent LED fans, I've got 3 x XLF-F1253's fitted to a triple rad, and they keep my i7 920 and GTX280 nice and cool.
Here is the specs for them:
XLF-F1253, 120mm white LEDs cooling fan, not only catch your eyes but it also performs to add more air current inside your desktop PC's case. With Max 1500 R.P.M. and 61 CFM but only 20 dBA quiet level, its result is a lower overall operating temperature with very little added noise. The white LEDs and transparent color will make your case be a spotlight.
Details:
• Specific bearing design (Long-life Sleeve bearing) provides longer MTBF and outstanding performance.
• Optimal blade design provides the reduction of noise and power consumption.
• Transparent colorific blade and frame with White-LEDs make your case be a spotlight.
• Higher airflow, static pressure and torque.
• Reduction for noise and power consumption.
• 4 pcs White LEDs and transparent colorific blade and frame
• Dimension: 120(W) x 120(H) x 25(D) mm
• Voltage Rating: 12V
• Speed: 1500 RPM
• Air Pressure: 61 CFM
• Noise Level: <20 dBA