I've read so much to try to understand the concept, but I'm still lost. I have a 55gal planted tank i'm barely starting up, with 2.4 ish watts per gallon. I want to get a co2 system and I'm looking for my best options. BTW, I'M AAWWFUL at dyi things so I won't even try peeking at that route. 
My first choice was the dr fosters & smith semi-automatic system which is 15% off right now (some people in here like it, some don't it seems) and it comes with everything but the bottle right? So i was looking for bottles and it seems like there's no one in san diego who sells them used but this ad:
"5lb CO2 bottle with reef fanatic regulator, $125"
Is that a good deal? Should I go for that? I think i'd only need the tubing, diffuser, and bubble counter which shouldn't be over $50 right?
I also saw the complete systems at green leaf aquariums, and even though I'm sure they're the best they seem sooo expensive but maybe that's what everything will end up costing in the long route if i went the cheaper way.
HALP.
EDIT:
I also read about milwaukee regulators, cheap and does the job right? What do you guys think about this and what else would I need to purchase? (other than the bottle) http://cgi.ebay.com/Milwaukee-MA957...in_0?hash=item35a2cd99e0&_trksid=p3286.c0.m14
My first choice was the dr fosters & smith semi-automatic system which is 15% off right now (some people in here like it, some don't it seems) and it comes with everything but the bottle right? So i was looking for bottles and it seems like there's no one in san diego who sells them used but this ad:
"5lb CO2 bottle with reef fanatic regulator, $125"
Is that a good deal? Should I go for that? I think i'd only need the tubing, diffuser, and bubble counter which shouldn't be over $50 right?
I also saw the complete systems at green leaf aquariums, and even though I'm sure they're the best they seem sooo expensive but maybe that's what everything will end up costing in the long route if i went the cheaper way.
HALP.
EDIT:
I also read about milwaukee regulators, cheap and does the job right? What do you guys think about this and what else would I need to purchase? (other than the bottle) http://cgi.ebay.com/Milwaukee-MA957...in_0?hash=item35a2cd99e0&_trksid=p3286.c0.m14