Life / Symphonies/orchestras in Warsaw? [3]

Also posted in Work/Study, because I think the question spans two subjects adequately. If I'm wrong to do that, let me know! I'm new and would be entirely unsurprised to know I've made a mistake.

Anyway, the question is this: what are the orchestral groups of note in Warsaw? Are there many youth orchestras/ensembles? I'm a young(ish) oboe player moving to Warsaw soon and I'd love to know what groups are out there that *might* want me. (I also ask because I'd want to go see the odd concert and tickets are expensive - it seems worth knowing the reputations of the ensembles I might see before I put money on anything.)

Thanks,
SJ