First summer:
Adler 27m
Ozil 24m
Sissoko 11.25m
Total in 74m, out 7.25m (bought Annan and Berezutsky and sold for profit 18 and 24 months later)
2nd:
Pato 16.75m
Balotelli 20m
Beck 12m
Total in 57m (inc 7m Smalling), out 36m
3rd:
Dzeko 24m
Gourcuff 17.5m
Affelay free
In 44m, out 14.75m. 23.25m left in the kitty. Every purchase was cash up front. I can't be arsed with money over time or clauses.
Total in 175m, out 58.5m. Kept wage budget down to 1.35m by releasing Scholes and Neville after the first season and getting Giggs and Van der Sar on 10k a week deals which increased the transfer budget. You can get around 10m extra a season by maximising the transfer budget and completing the signings at the same time so being over wage budget doesn't stop you offering high wages as when you offer them you're under budget. Then just reduce it over the season back to budget with new contracts.