no matter what... get a SSD 
Not on a budget. Get enough RAM, as it is very cheap even for great RAM, to load the program into memory. Once it is loaded, that SSD is a fancy device that sits there until you need to read from it again.
So you've got 600 Euro's? About $800. So here is a sample. This is geared to be a gaming PC and for your Graphics studies. Meaning, you need to put as much into your video card as you can, except for rendering, which as I understand it is CPU based for Maya, not sure about 3DS Max, but likely the same. So you want a decent multi-core processor as well, with enough RAM to hold what you are running in memory.
I would start with this GTX 760. Price $250
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130935&nm_mc=KNC-GoogleAdwords&cm_mmc=KNC-GoogleAdwords-_-pla-_-Desktop+Graphics+Cards-_-N82E16814130935&gclid=COyBnvbajbkCFeHm7AodiRgAegThen grab an 8 core AMD processor and motherboard combo. Price $275
http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.14009098GB of RAM should do fine. Price about $70
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233180Alright. That puts you at about $600 with another $200 to spend on your case, power supply, hard drive, etc.
While an SSD drive is cool to have, it is totally not necessary and costs 2x-5x+ over a standard hard drive. You can get this 1TB drive for half the price of a 256GB SSD. $70
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148840Leaves us with $130
Case ATX mid-tower and 3 fans for $45
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153So $85 for a power supply.
CoolerMaster 750W for $60
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171053Now I was looking at the cpu/motherboard combo, and it didn't appear to come with a heatsink. I know we've only got $25 left in the budget, but if you can find the extra cash, I recommend this liquid cooling solution for $60, putting you $35 over budget.
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010110575%201377228279&bop=And&Order=PRICE&PageSize=20If not, well you can get a standard heatsink/fan for your cpu for as little as $10
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=2010110575%201377228279&bop=And&Order=PRICE&PageSize=20Now, you are still missing some key components, like a CD-ROM drive, a monitor, keyboard/mouse, but those are parts that usually move from the old PC to the new one (the hard drive too often times)
If that is not the case, then you may have some tough decisions, to make, especially if you don't have a monitor. Here's what you can do to free up some cash, but I wouldn't start here if you can help it. It will serve your purpose, but you'll probably look to upgrade in the next year or so, whereas with the specs above, you should get 2-3 years out of it at least without needing to upgrade anything.
So if needing a monitor too, get the GTX 650 Ti (notice the Ti! Do not get just the GTX 650, it blows) which will save you about $70.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130910That will get you within $10 of a refurbished 19" monitor with 1280x1024 resolution, which that GTX 650Ti will be fine with.
You could also save another $70-$80 by dropping to a quad-core cpu, but if you are going to be rendering from a 3D graphics program, I really would not recommend that you do that. Also, I put the first 3 items first because they are what matters the most. They are also where you can trim the most cash if you find yourself in a pinch, but really, try not to go low on those. Scavenge a CD drive from a PC someone tossed out, or find one at a thrift shop, or ask your friends if they have an old spare. Same thing with keyboard/mouse. Hell, I have a few of those if you lived nearby that you could have. I've even got a monitor that is a spare in case one of the current ones go out.
Finally, here is a video from NewEgg on building your PC. Yes, I like NewEgg. Their prices are good and their items work, and the one time I had an issue, I simply returned it to them
after they shipped me the replacement.
