Decent links on quality, high traffic websites are tough to get, its not like it was in 2005/6. Now website owners realise the worth of what they think they got, and all pretty much demand some form of payment for links, and thats not even their best web space being offered.
I feel its a case of approaching related low-key websites, as these are easier to persuade, where the 'big authority' sites will almost certainly turn you down, and likely to not even reply back.
Eg: take the university websites, these have nearly always high PR resource pages - but unless you too own an authority website, you cannot match them in status, nor equal their link offering. See, such sites link to huge resources/well-known sites, so unless you are famous, I doubt you'll be on their radar somehow, and huge authority sites will always be able to pick and choose who they link to.
Lets face it, people chase links for SEO, when they should be doing it for targeted visitors who will return for them:
1. Portal needs returning traffic to make sales/pass the word
2. Shop window sites need to sell products
3. Forums want new members
so even with different needs, the traffic must be targeted, which general linking cannot provide, and most link campaigns fail. Also to do this en-mass requires automation, far beyond any webmaster £200 blog or site.
Unless you are the next TechCrunch or notgoingtouni, Id forget dreams of 1000's of links suddenly linking to you - chances are you wont have that big idea, and no fame bcos of it. No rush of links without serious fame and presense.
I'm expecting to run some ads in industry magazines
Forget this and save your cash, I appeared in 2 top industry magazines and got nothing out of it. One magazine piece was very quite cool too, it just doesnt work that way as people wont link to you just bcos you appeared in some magazine.