Pai,
I know what you feel.. I went through this stage earlier in my venture into Photography.
However, one thing for sure is, once you go out from the stage where you buy thing because you "WANT" it and start pushing yourself to create more with what you have, I am sure brand name means nothing (ok, something, but not the most important part)
Ok, for all of us, I love to buy gear. I am probably the luckiest one because I have access to lots of good second hand gear which my friend pass it to me to sell. However, I must admit that I have more gear than I need.
To me (at present time), When I look at a photograph created by somebody, I see all the quality behind it rather than what gear it was used to create that photograph, because it is really irrelevant what system you use.
Being in Minolta camp, you are probably feel we are being left in the dark with so little in selection of accessories, but the matter of fact is, what different it really make if you use a KM 17-35 f3.5 G or KM 17-35 f2.8-4? really, there is nothing much in terms of creativity and what can be done.
You need to convince yourself that gear is secondary but image is upmost important. Learn the limitation of your gear (yes, every system has limitation), learn how to get around it.
I am not going to make an excuse not to shoot for a paid job if I don't have particular lens... I have to push myself and create something out of what I have, I think this is more important. It is far more challenging to get something when you try hard rather than only rely on the gear.
Don't need to despair, and go out and snap some photos.
Remember, you are in control on your gear, not the other way round, that how we call ourselves photographer.
Ansel adams shoot mostly less than 20 frames and the camera he used doesn't even have shutter speed control. Does it deter him to create some best Landscape phototgraphy which we still admire until today?
I leave the thought to yourself.
Regards,
Hart