Or perhaps Eclogae I-II, to get a bit more experience before returning to Catiline. I'm not having too much trouble yet -- I've read the first five lines, can scan them properly, and mostly make sense of the text -- but I'm probably going to make a thread anyway so I may as well start now.
Tityre, tu patulae recubans sub tegmine fagi
siluestrem tenui Musam meditaris auena;
nos patriae finis et dulcia linquimus arua. ...