Get top grades. Then work hard for 3 years in a top local firm (e.g. A&G, Drew, R&T, etc.). Make sure your work is outstanding and get good references. Then try to jump to an international firm. Not just any international firm though, some of them don't pay that well. Go for the magic circles (UK) or whiteshoes (US) - they pay the best. The bonus won't be as good as the local firms, but that's to be expected as your base salary will be much higher.