Buying characteristics: in San Francisco is a doctor who can do surgery to obtain strength, agility, perception, etc... and add health:

https://pp.vk.me/c629400/v629400878/e03b/PD6gvwBB9l0.jpg

Buying perks: In NCR you can buy(prices may vary):

https://pp.vk.me/c629400/v629400878/e062/FS8pRnyTUqI.jpg

In sin city you can attach plates to your character, which will give portability to 100kg of weight each! (you can buy 4 plates) it is a pleasure [1.000.000]$ you must have a character with 250 repair 250 science

https://pp.vk.me/c623422/v623422951/40454/Tcf94AK7N3I.jpg
https://pp.vk.me/c623422/v623422951/4045d/2l7HP0yXOjY.jpg