HD3850 in 5-5.5K is good as per me
if you get HD4670 DDR3 in around same price its better.
You cannot compare 9500GT with these cards. its DDR2 card whereas these are DDR3. Both are much better than 9500GT
check this link
http://techreport.com/articles.x/15559
the cards counted in here may make you feel HD3850 not good but it comes out better, basically its the company and makes.
best being Palit/Sapphire
for mobo if you can get mobo from Gigabyte or Asus well and good. Otherwise this mobo is also good.