I'm glad you like it. For higher screen resolutions, there are cheat codes, such as vga=792. Just press tab when at the syslinux menu, and add that. For other resolutions, check
http://en.wikipedia.org/wiki/VESA_BIOS_Extensions#Modes_defined_by_VESA . I _think_ this will work, but I haven't experimented with it. Please let me know if it works.
Cheers, M.