your tyres are called asymmetrical,and yeah b/s RE are priced well for common size like 235/45/17s but others damn i sold a guy 1 and it cost us $550 to get it in!!
with tyres you do in many ways get what you pay for, i have 15" rims and on them ive got goodyear eagle f1 directional 5s on the front of my lancer (as its fwd ive got the best grip in the front) and some cheap blue streak directional on the rear (195/50/15) cheaper common size , going into a 205 makes you have less option.
the difference between the front and rear is when the road is wet i can drift my car with out the hand brake as my front as premium tyres compared the the rear entry level tyres.
best bet is get some cheap rims that you like and spend the money on decent tyres i mean its the only thing keeping you the way you want to go, explain to the tyre guys what you want they would be able to offer you what you want at price of course but if you cheap awesomely grippy in the rain and dry, with low road noise they wont be cheap if you get what i mean.
if you just want run of the mill tyre to get to a-b then get what ever, if you push your car a bit then step up to premium tyres.