heres a pic of wat my mini looks like i would like a nice wheel for under 150$ i would also like to keep the stock run flats any suggestions, please post pics if ya want.

 

Aloha and welcome to NAM.

For aftermarket wheels stick to 17x7 or 17x7.5" 4x100 bolt pattern with wheel offset of about +42mm to +48mm. This will allow you to lower your MINI later and still use the wheels without rubbing the inside of the wheel wells. If you choose wheel offset of +37mm to +48mm then stick with the stock suspension to avoid rubbing.

Your stock runflat tires will fit on the above mentioned 17" rims.
You may shop at tirerack.com for a very good selection of wheels in 17"
Your upgrade garage!
See-
ASA rims- JS 1/JS 5/JS 6
ASA EM9 17x7 offset +40mm 21 pounds $139 per rim

Bright satin silver paint finish


Kazera KZ-R 17x7 offset +45mm 19.6 lbs. $129 each rim

Kazera KZ-S 17x7 offset +45mm 18.5 lbs. $129 each rim

Also Kazera KZ-T and KZ-U (18.5 pounds) for $129 each rim

Sport Edition Fox 2/Sport and TK5 rims

Sport Edition Fox 2- 17x7 +40mm 22.5 lbs. $144 each rim

Sport Edition TK5- 17x7 +45mm 22 lbs. $139 each rim
Kosei K1 racing are good but a bit more at $179 each.

Or at edgeracing.com - see
http://edgeracing.com/2004/Mini/Cooper_(all)/wheels/17/
In your price range consider-

Flik wasp black 17x7 offset +42mm 19 pounds each $102 per rim

Flik wasp anthracite 17x7 offset +42mm 19 pounds each $102 per rim

Flik artic anthracite 17x7 offset +42mm 18 pounds each $102 per rim

Flik lex 17x7 offset +42mm 17.5 pounds each $122 per rim

5zigen typhoon gun metal 17x7.5 offset +42mm 20 pounds $140 per rim

Flik Tdr-b (Team Dynamics Black)17x7 offset +38mm 15.5lbs. $155 per wheel
(lots more choices not shown)

There are some nice rims in the $200 each range as well.
Weights will vary- the stock 17" S-lyte rims are 25.1 pounds each so any rim that is about 18-20 pounds will be an improvement. The lightest 17" rims will run from a little over 12 to about 15 pounds each.