What are lesser known effects of HRT I should know of?

mostly anecdotal but still:

• not everyone gets this, but you might find your tastes (as in, like your tastebuds) might change - some stuff you might not have liked before you might end up liking
• hair obviously changes, but hair type can change pretty dramatically for some people - just a result of different chemical signals going to your scalp, as far as I understand it :)
• make sure you keep up your water and your eating, cos you're gonna need both of those a whole bunch more, especially early on
• also be prepared to hit things a bunch as you re-adjust to a new shape and centre of gravity over time :P

congrats!! march can't come fast enough