Best option would be an HID retrofit. It's also the most expensive option, but it's the best performance you can get. Expect to pay about $500-600.
Plug and play HID kit would be next, but you have to exercise caution and take measures to prevent glare. This practice is frowned upon by most though due to glare. About $200-400.
Bulb wise, IIRC, there wasn't much choices for H11 (the latter was only on 2003-05 for the 9006 bulb size, unless manufacturers stepped up). But if things have changed HIRs is a good choice. Silverstar and Silverstar Ultra are good, but the bulb life is short.
I recommend avoiding any bulb with blue glass that tries to create the HID look simply because it's cutting down your light output and brightness.