i there you can refer to the macau gov tourism website, they provide this info..but if you are not travelling in a big group. i would say macau is not really big where you can explore on your own 

You don't need a tour actually

Famous places likes what?
Senado square and The Ruins of St. Paul's are right next to each other then you can go to Macau Museum (Macau City Center)
Church of Our Lady of Carmel, famous pork burger, The Venetian Resort at Taipa (Another island)

My suggestion:
Arrival in the morning -> Senado square and The Ruins of St. Paul's + Macau Museum + Grand Lisboa Hotel -> Lunch -> Church of Our Lady of Carmel -> The Venetian Resort  -> Dinner -> Macau Tourism Tower (it closes at 9.30p.m)

egg tarts, almond cookies, pork burgers all at the senado aquare area on the way to the ruins.

some of the hotels with attractions:
grand lisboa hotel has some nice arts/antiques collection
wynn hotel has the rotunda and musical fountain
city of dreams has the dragon treasure show (cheap tickets), the mermaid screen thingy and house of dancing water (need advance booking of tickets)
venetian has zaia (need tickets, advance booking not needed imo), grand canal shoppes
galaxy hotel (indoor wave pool)

there you go..

there is a panda park too, at cologne iirc

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Added on May 24, 2011, 12:42 pm
hmm should be around MOP50 for economy class and MOP100 for first class tickets...

Few of the Attractions missed by human Nature:

- The famous St Paul Ruin & the small Na Cha temple at the back of the ruin. Also, at the back of Na cha temple is the olkde Macau sity Fort wall...
- The Museum & fort on the hill beside St paul ruin
- Another Fort where the light house situated (Sorry forgotten the name liao)
- Ah Ma temple near maritime Museum - This is the temple on Macau name existed when Portuguese colonised the,,,....Ahhh Mahhh Cou..or something
- The famous Portuguese mansion used to be shooting location of TVB & lotsa drama even Korean dramas..(Forgotten liao haha)

For food, not forgetting the lemon milk beside Senado square..Also very famous..look like Taufu far...

The ferry hor..I dun think economy is only MOP50 or HK$50..can't be so cheap..In 2008, the weekend economy calss ticket from HK tO Macau already cost me ~ HK$400 ++ for 3 or ~RM200++ for 3