I either wear my shoes or go barefoot. Usually in summer I go for barefeet.
The shoes I go for are either a flat-soled shoe like the Chucks or a "barefeet shoe" like the Nike Free. I would like to get some weightlifting shoes, but they are inappropriate for deadlifting.
Couple of things you have to consider though. The advantage of barefoot training can also be its downfall. The lack of arch support, especially on the heaviest lifts you will perform in the gym, is not always good for foot health.
The main reasons for going barefoot while deadlifting or squatting are ROM and proprioceptive feedback. The latter point is the reason weightlifting shoes have a hard wooden sole and why Chucks are loved by PLers. The proprioceptive feedback will help with lifting and body position. It is, however, important to note that you can't just suddenly go barefoot and lift heavy, you need to adjust to lifting in barefeet. The other point, a slightly shorter ROM on the deadlift, is only really important during competition.
This is always a moot point in most gyms though as they have liability issues related to shoes. Also for those with high arches you really shouldn't be barefoot training on your heavy days too much anyway.
Thanks for the respons :)
Very important points, and that's exactly what i was thinking as well (even tho my lift aren't that heavy - yet!)
The thing is i squat in my Ironworkers and when i do deadlift/other exercises i'm just having my normal shoes, pretty low flat, but they still have some heel. And this guy came over to me "get those shoes off when you deadlift :)"
They aren't anything like barefeet, but I do have better balance and movement in them than other shoes. They do squish a bit but they move more like your foot so the squish doesn't cause movement problems like other shoes. The support is more similar to barefeet than shoes, but it does offer some arch support and cushion under the feet, so you can run, jump, skip rope, etc.
Ideally you would have a pair of Frees (or similar), a pair of Weightlifting shoes and a pair of Chucks for all your lifting/training situations. I think for most people either a pair of Frees or Chucks should be the choice.