Bummer to hear, 01 civic with 150k is barely broken in. My 04 accord has about 160 on the clock.
I would hesitate to trade in, how long have you owned it? If you've had it a long time and taken good care of it you're better off spending $$ for one big repair that will keep it going for a while. I had to rebuild my trans in my accord at 110k but have had nothing but regular maintenance since then. Was upset at the $2500 bill at the time, but 4 years later I feel that its easier to deal with one big problem then a lot of little ones.