I'm not an expert but just going on personal experience.
Renting isn't necessarily 'dead money' it depends on your circumstances , the future etc. Not only do you have to pay the mortage, but life insurance to cover it, up keep and maintenance of the property, management fees if its an apartment or your renting it out. As we know from the past few years, investing in a property isnt always a good investment.
As for getting a mortage, you will need a deposit, if your registered as self employed probably about 20-30%. Despite what the banks etc say and advertise they really will make it difficult to take out a mortage. You need to show three years accounts and even then if it doesnt fall into certain criteria (above average income, solid job prospects!) they wont lend.
Dont want to put you off, but it isnt the shoe in it was a few years ago
Come in she said "I'll give you shelter from the storm "