[postgis-users] does this projection exist?

[Rob Agar]

hi all

I want to project lat/long points from WGS84 to a custom coordinate 
system, but since it's a fairly obvious projection, perhaps it may 
already exist as an "official" spatial reference system.

Basically, what I want is:

- mercator projection
- origin at 0 E, 0 N
- positive x is east, positive y north
- unit in metres

Does this already exist in spatial_ref_sys, and if so, how would I go 
about finding it?

If it doesn't exist, how should I construct the srtext & proj4text 
strings to add to the table?

cheers
Rob