Equipment is secondary. Just need a wide angle lens and some Grad ND filters and you are ok to go.
Just need to wake up early for the sunrise.
Sunrise recommended places.
1) East Coast Beach
2) Changi Beach Boardwalk (along the coastal walk)
3) Sembawang Park
4) Bedok Reservoir
5) Lower Seletar Reservoir
6) Punggol and Lor Halus area
7) Marina Bay
Sunset
1) Punggol End (Jetty)
2) Labrador Park
3) Lower Pierce Reservoir
There are more places to explore. Here are some of the examples I mentioned above. Some of the places may have some changes due to redevelopment etc. I will go to the same places for a few times as each time, the sun or lighting is different. The foreground interest is important for wide angle shoots too. So going back to the same place will always yield a different photo.