(sorry this was a little late… planning my wife’s birthday today)
So by saying you want to record yourself and then select which pieces of a kit ultimately used, I assume you want to record MIDI trigger by your kit and then tweak the samples used by SD2 (and be able to punch in a little here and there to tidy things up)…

I’m not sure which platform you are using Mac or PC; (please update your profile, btw, it helps us help), so I must assume as well you have been able to able to get to the point to you can create a MIDI track with your TD-3 as input. If not we can go through that although there’s plenty of information here and at DUC about getting a MIDI device connected to PT.

For SD2 I will go through the basics, I won’t get into multiple outputs and such at this point.

So starting a new session;
– Create a stereo master fader
– Create a stereo instrument track (rename SD2)
– Create a MIDI track (rename TD3)
– Create a mono instrument (EZplayer)
– Set “View > Mix Window View > Instruments” (make sure is has a check next to it) This will display a section above the track inserts to setup I/O for instruments.
– Set “View > Mix Window View > Insert A-E” (to display the first set of inserts). If you’re not sure about these; deselect and see how the screen changes and then reselect, these are your insert points.
– (on TD3) in the MIDI input selector pull down select your TD-3 device (slide over and make sure it says all channel)
– (on SD2) in the first insert position “Multi-Channel plug-in > Instrument > Superior Drummer Multiout (Stereo)”, there should be a nice graphic drum kit now…
– (on SD2) in the “Midi Input Selector” this is the section on the channel strip above the insert, there should be a button (pulldown), which displays “all” Pull down TD-3, slide to the right and make sure “all channels is highlighted”
– If the brain on your TD-3 kit is turned on, hit the snare drum and see if the levels on SD2 react. (they should)

Quick tutorial on EZPlayer; (and I am assuming the MIDI libraries are in their default locations)

– (on EZPlayer) select the first insert point, “plug-in > Instrument > EZPlayer (mono)” Nice EZPlayer graphic should be displayed.
– (on SD2) in the “Midi Input Selector” this is the section on the channel strip above the insert, pull down “EZplayer out 1” > “all channels”
– (on SD2) arm the channel to record
– In the EZPlayer graphic select a groove to preview and you should hear it through SD2.
– You can drag and drop the grooves to (SD2) and they will play by triggering the PT transport
– You can assemble entire performances in EZplayer… more than I can cover here for sure

This is enough to get you started, I haven’t covered a lot here, just the basics… there’s multi-channel routing and using the mixer in SD2 that you will discover gives you unlimited flexibility.

Let us know how you get along…