First off, these taxes will help out the problem very little, especially with all the spending projects this and the previous administration put in place. Furthermore, raising taxes will lead to fewer jobs during a time of high unemployment, not to mention higher taxes does not always mean more tax revenue- it can mean just the opposite.
Remember the Laffer curve, which essentially states that with higher taxes you will have fewer firms in the market and as such, the tax revenue graph is an upside down parabola, with extremely high taxes, resulting in lower tax revenue than lower taxes because there are a lot fewer firms in the market to pay that tax. We have seen it in practice with the capital gains tax in this nation and there is a strong argument that we might be nearing or past the apex in these multinational markets looking at outsourcing trends.
But with less revenue, how are you going to help the unemployed? Mind you, our tax systems in Canada are marginal (well, not sales tax). Essentially, that means if you make more, you'll be taxed more percentage-wise. The big problem that I have with less taxes is that the large corporations are getting richer, and the middle and lower classes would be getting poorer and poorer. Think about this too, with less government, you're just going to have the same problem again, bailing out corporations who have been trying to maximize revenue in an unstable way.
Mind you, when the American banks were failing, the Canadian banks were stronger, because they have tighter controls. They might not make quite as much during good times, but at least they're stable. Look at the drug problems too. No offense, but the FDA is too lenient to let drugs in the market, mostly for profit (the fact that it's a bit more free also raises medical prices). I can tell you right now, Health Canada is much tighter with drugs. There's less in this market, and prices are not as ridiculous.
The main difference between Obama and a few of his predecessors is just that he was raised in the middle class. His policies have been leaning more towards helping the middle class than the last few because of that.
I understand that you're more conservative than I am, and that's absolutely fine. You're making good arguments for a good debate, by the way.