I personally wouldn't even consider dropping $200+ for a pressurized CO2 system on a 10gal tank!
I think you should be able to manage OK once you have your CO2 mixture up and running well and as long as you switch your bottles out regularly. That plus ferts and Excel should go a long way.
That being said, personally IMHO I still wouldn't run anything close to that wattage on a 10gal. The tank is so shallow that once you include substrate the plants are VERY close to the light- I think even just half that wattage would still be a high tech tank and you should be able to grow just about whatever you'd like...