I dont see a convert style that would do it, probably the closest is 101 - which would return mm/dd/yyyy. Seems like there should be something better, but this should work:
declare @Temp varchar(20)
set @Temp=replace(convert(varchar(20), getdate(),101),'/', ' ')
set @temp=left(@temp,len(@temp)-5) + ', ' + right(@Temp,4)
If you using SQL2K I'd create it as a function.