i installed gnome from ports and it works just fine. i dont know why you absolutely have to have 2.26. you can upgrade from 2.24.
colored ls and all that crap... whats the point? if you look about 2 inches to the left, you can tell by the first field in the file permissions what it is, executable, directory, whatever.
like other people have said, the boot messages are exactly what 99% of freebsd users want. so i dont see it being changed any time soon. you CAN have a bootsplash if you want.
boot time... someone already said, configure a custom kernel so it wont be loading all those unnecessary modules and your boot time will improve.