yeah, to get a creditation as an engineer, you'd need to do 5 years if u do a BSc then ME, but only 4 if u want to do BE. ill list the disadvantages and advantages of each:
BSc-ME
Adv: 2 degrees, and the masters looks good
Dis: extra year, therefore, extra money, companies would choose ppl with BE over BSc any day of the week, and twice on sundays
BE
Adv: only 4 years for accreditation - less money - looks awesome on a resume (especially coz its running its last year, so they'll know you're dedicated) - sets you up perfectly for an MBA, which companies love (takes half the time to get it too, as you'll have done enough work with numbers etc. to do the course twice as fast as normal business students)
Dis: Not masters