If it's just a matter of a weak power supply and your motherboard is otherwise capable of overclocking, then upgrade to a good PSU and overclock the 1045T. You should make at least 3.5 GHz with no problem, probably 3.7, maybe 3.9 or 4.0. Even at 3.5, you'd get acceptable performance.
I had a 1035T for a long time. It was pretty weak at stock, but once I got it to 3.6, it was able to do what I needed and then some.