Replying to Best All Mountain/Park ski for me!

My name is Leandro, I'm from Buenos Aires, Argentina.

I work during the US winter in Park City, UT... so every December I go there and work and ski for a couple of months.

Due to a luggage constraint I only have a pair of skis... and I am looking for a new ski for the next season.

I love to ski trees, groomers and get into some powder (I don't go into the back country tho) and lately ive been hitting the park for a few boxes and rails. I consider my level as advanced in All Mountain, and begginer in the park. I would really like to get more into park, but I don't think I could spend a whole day in the park, just hit it for a few runs a day.

So the matter is that I sold my pair of skis and now I am looking for a new pair.

I would like to get an all mountain ski... that also could do decent in the park! My last skis had rocker in the tips, and that's why I had the bindings mounted in the center. Probably as I had a dead centered mount, hittin rails and boxes was much easier than it actually is with a non-rocker ski? Should I consider buying skis without any rocker?

Another important issue is that I don't want to spend too much money on skis, I don't care if it is a 2010 2011 or 2012 model, I dont really care. I am in the range of $200- $350.

I have access to fat powder skis from a rental, so when there is too much snow I just wont be using these new skis.

Ive been lookin in some websites and I came to these 4 pair of skis. Please it would be sick if u guys could advice me on which one to get... and if the right choice is not in the following list, please let me know!

1. COREUPT. Candide Yard 2011 skis. http://www.freeride.co.uk/img/review/original/6792_pic1c.jpg

@171cm

2. COREUPT. TJ Schiller 2011 skis. http://skipass.fr/photos/matos/50197/75948.jpg

@ 173cm
Sidecut: 113-86-113mm
Turn Radius: 18m
Product Weight: 7.05lb

3. ROSSIGNOL. S4 Jib 2011 skis. http://www.freeride.co.uk/img/review/original/7197_pic1c.jpg

4. DYNASTAR. 6th sence spin 2011http://www.getboards.com/product_images/w/793/6TH_SENSE_SPIN9_zm__86594_zoom.gif

These last ones, are the ones that I think today as te most suitable cause of the 87 underfoot. Please tell me what you think! The Rossignol S4 seem to be like a 100% park ski even thogh ive seen it listed as a park/all mtn ski.

Please let me know!

Thanks for readin, hope you have a good one. Any help will be greatly appreciated!

Im sorry if my english is not perfect!

Peace!