well as im only 16, and no proper band (just yet, its being worked on
)
im not gigging that often, so the main venues im playing at is theatres with school/city big bands
I think that the above statement is the most important point to consider in terms of the
urgency in buying a rack. That statement leads me to believe that a rack isn't really an
immediate necessity, and since you didn't mention anything about your current hardware being non-functional, I would think what you're using now is sufficient to get you by in the meantime. Assuming this is true, it also gives you the incredible advantage of being able to be patient about when you buy, and, gives you the time to figure out which rack would be best and wait for a good deal to come along.
If other components of your kit require upgrading (you mentioned cymbals), then I think that takes priority over hardware - again, this is assuming that the stands you use now are still usable.
Now, getting back to the topic of which rack...
The first bit of advice I'd give you is
BUY USED!!!!! As long as it's strong, stable, sturdy, and cosmetically meets your standards, then you're golden. Take a good look at it before you buy and you can quickly and easily determine if it meets that criteria. You can also get a better rack for a lower price by buying used so it helps the financial part of your decision as well as eliminating the need for upgrading again in the near future (which is another good point you mentioned earlier).
I won't pretend to be an expert on racks, but I have one that came with my 7-piece Tama kit (all bought used). It's a Gibraltar - not sure what model or how old it is, but it's a curved rack with two side-wings and it's very adjustable so I'm guessing it's higher-end and not too old. Gibraltar is essentially a hardware company so I'm sure they make the parts that you need to rack your kit. They also seem to have lower prices than other manufacturers (pearl, tama, etc.) that also offer good-quality hardware, so you can save money whether you buy new or used. If you happen to buy new, I believe Gibraltar also gives a 5 year warranty where most other companies only offer a 1 year warranty. To me, that means they stand behind their product because they know it's good. This is by no means intended to be a Gibraltar endorsement, but since no one else mentioned them, I thought I would. They definitely have some advantages and it seems as though they would be a good fit for what you are looking for.
All the best,
Mike