:mellow: Can somebody point me at a linker that links Borland OMF and GCC COFF
objects and produces a 32-bit binary image .

Borland comes with coff2omf.exe that you can use... Otherwise uses something like MS link which covert omf to its own modified coff format before linking.

And what about 32-bit images ?

I don't understand what you mean by produce a 32-bit binary image. coff2omf produce a omf lib file from coff lib file. You then just compile and link your program like normal.... Otherwise, MS link automatically convert omf lib to MS coff lib before linking everything again producing PE like normal.

I mean . I want to make a bootloader and i need to make 32-bit binary file. Like
doing a exe and using exe2bin !