Free Wi-Fi, iPod docking stations and an in-house restaurant add to the convenience for guests at the non-smoking Hotel Zelos San Francisco, near downtown's Union Square. The eight-story Hotel Zelos' 202 non-smoking rooms are furnished in bright, contemporary style and decked out with flat-panel TVs, free Wi-Fi and iPod docking stations. There's a fitness center on-site, and the 24-hour concierge desk can help with business services. Enjoy cocktails and a meal in the hotel restaurant and bar, and help yourself...