Advice on Apple products for university (laptop+tablet)

Im going to university this fall and since I now have enough funds I have decided to buy some nice gadgets for myself that will also help me in university. For some time I have been eyeballing Apple products, beacause of interest in OS X and experience with my iPod Touch, which has been quite pleasant.
Before I start, my current budget is roughly around 1000€. I may be able to add 200-300 more if needed. Also I plan on getting a part-time job, so I may have more cash to spend in the coming months.
What I will be learning is a mix of mechanical and electronical engineering and will also include programming, so my main concern is an able laptop that is enough for tasks related with these subjects(most likely CAD + programming). I also want to use the computer to record some music.
At the end I want to end up with both a tablet(iPad) for entertainment and reading documents/spreadsheets/PDFs/presentations and a laptop(Macbook) for more serious work and, although the laptop is more important. I do plan on taking notes on either of these devices. I also have a 4 year old PC desktop that is mediocrely powerful(3GHZ C2D E8400, 4GB RAM, Ati 3870 graphics) if need some more oomph(although the i5 Macbooks are more powerful in terms of processor speeds).
For now, I have narrowed my choice down to these two options:

1) Buying a new/slightly used 2012 13" Macbook Pro/Air at first and the iPad later.
Pros:
Computer is blazing fast and future proof
If I don't like OS X I can always swap it for a new PC laptop with no money loss
Warranty
Cons:
No tablet
If Apple launces a 13" Retina this fall I will feel a bit disappointed(although it might be too much for my budget anyways)

2) Buying a new/slightly used iPad 3 and a used 13" Macbook Pro/Air and swapping the laptop for a new model when I have enough funds
Pros:
I get both gadgets
Although slower than the new models, C2D Pros should still be powerful enough for my use
Since I have been eyeballing the alleged 13" Retina MBP, I can get it when it has matured a bit
Cons:
Inevitable loss of money when I change laptops(not a big deal, but still... )
No high speed connections like USB3/thunderbolt
If Apple launces a new iPad this fall, buying one now will feel somewhat painful
If I get a older Air it might not be enough for my needs(especially CAD)


So what do you think? Which option I should go for? I do plan on switching to a SSD and upgrading the RAM when I get a Pro.

 

Although it is much wiser to take only the laptop, I still consider the iPad as well beacause at least in high school we lots of material in digital format, like documents, PDFs and presentations and I think that it would be much nicer to study them from the iPad which is perfect for that. Also I take that it would be perfect for watching TV serials and videos off YouTube.

As for the laptop Im leaning towards the Air, especially when I get a new model as it is light and I already have a bigger computer and an external drive for all my files. The only drawback is the lack of ports, especially Firewire. Although I dont use it at all, it seems really important as I want to dabble into audio recording and some interfaces need it, although I might just be overreacting.

 

Any other opinions out there or should I go for the newest and fastest?

 

Well basicly I could get 100€ off from an Apple laptop, but since Europe has "fair" pricing, it would still cost 1179€ after the discount(1279 for the Air 'cos I would get 8GB RAM). Another option would be a almost new 2012 13" Pro from a forum, these go for ~1060€, but I'm still torn between an Air and a Pro and there arent any new Airs for sale right now(could get a 2011 model but I'd rather pay a bit more for USB3, 8GB RAM and hd 4000 graphics).
I cant decide if I want slightly more power, slightly better/more beautiful screen, more ports and upgradeability or better portability, less glare, better resolution and possibly better future support.

 

Found a high end 13" 2012 Pro thats been used for 2 months that goes for 1000(retail 1500-1600), what do you think, should I try and grab it?

Been recetly thinking if I should try to go for a laptop with a quad-core processor, even if that means staying with windows. There are some pretty good deals on Asus computers that have the same specs as the 15" Pro, but go for 1000 new(they look ugly though ). Downside would be portability(2.7kg is too much to haul aroud daily I recon)