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You likely will have trouble with the T2i and infrared filter. I tried the same with my 5D MkII and the results are disappointing. This is caused by very strong hot mirror filters placed in front of the sensor. The hot mirror filter filters out IR light - the stronger, the longer you need to keep the shutter open to compensate for this effect. Unfortunatley while doing this (under long exposure times) you will get some regular light in which messes up your IR photo. You can see this when getting sort of greenish looking color effects.
You have only two options. Either replacing the hot mirror filter and converting your DSLR camera into a full IR camera without using an IR filter in front of your lens. This option is expensive since companies charge a lot for this conversion. A fully converted camera allows you to take IR photos of moving objects, too (doesn't work with the filter method described below due to its longer exposure time).
Other option is to go back and use an older DSLR camera which uses a less strong hot mirror filter. That's why I still keep my Rebel XT camera around - this one is very suitable to take IR photos just with a Hoya 72 IR filter with exposure times of a few seconds per photo. Only con is that you don't have LiveView to focus, so it is a bit of try&error to get the focus exactly right.