Wifi
I really like Macau as I find Free Wifi everywhere, even in open area. To find the hotspot, you can visit Wifi-Go official website.
Travelling around the city
There are different public transport, including trams, taxi and buses. There are shuttle bus in each hotel which drives visitors to various places. From place to place in the city, you can easily grab a taxi. The cost is quite low if you are traveling in 4. On average, each ride is about $50 and takes about 20 minutes from place to place.
Hope the information provided is useful to you. Feel free to leave me comments or send me emails if you have further questions regarding to traveling to Macau.