I'm seeing some correlation between amps and number of breakers here. If it's more breakers you need, go with the "space saver" breakers or a sub-panel. Guyod's opinion is valid (in my opinion), amp probe a 100amp service on an average size home and you'll find that 100 amps is plenty, unless your running some equipment not typical to an average home (i.e.- an air compressor, welder, etc...). Even then, unless your running this type of equipment constantly, 100 amps is plenty. Also, it's my understanding that if you upgrade to 200amps, you'll have to upgrade the incoming wires from the utility company (not a DIY situation).