I respond this way because you are asking for "decent" pants:
If that is your budget you should just find the best deal on the most marked down pants you can find in your size and take what you can get. A decent pair of pants starts at $200 on the low-end.
I have a $100 pair that I paid like 60 for and they are complete shit.
I have a $400 pair that I paid about 200 for and they are exactly like a $400 pair of pants.
Recommend me a nice pair for around $200.