[postgis-users] Can i use postgis to do what cs2cs does?

[Rafael Vidal Aroca]

    Hi people,

    i have a table in PostgreSQL with several geographic points using 
WGS84 datum lat/long.

    Using cs2cs i can convert it to utm in sad69 datum (Corrego Alegre).

    Is it possible to do it using postgis? If so, can someone give me an 
example....this will help me a lot because i will not need to call 
external programs such as cs2cs to do my selects.

thanks.
Rafael.