First time lucky for me, and all the paperwork was done by the honorable me, also. The new entry system through the website is real easy. And basically you don't want to write anything on the 2nd envelope's papers that you cannot prove, like schooling and/or work experience.
In my first envelope there was a paper of an immigration lawyer who wanted to do everything for me, from the US. Basically what that meant was, you'd still have to do everything for yourself, and then just mail it to him. They are called Kan-Tor, and they wanted to charge me the ridiculous price of about $4000! That was more than what I paid for the visas! And paying the lawyer did not include the visa payments, so through the lawyer, my eventual costs would have been enormous!
Also, if you did not manage to get hold of all the required docs before the final cut-off date, it would have been only your own fault, with the lawyer washing his hands in cash, ag, I mean innocence... They made it very clear that payments were not refundable.
You can decide what you want to do, but the idea of me having to do all the work in SA regarding the getting of unabridged birth and other certificates, and then have the lawyer take credit for it (literally!) was one too much...
And remember, you actually don't need to have everything required at your first interview with the consular! As long as you show up as stipulated in the 2nd envelope, and in doing so proved you are taking the process serious, you'd be ok. You hand in what you have at the time, and then you have a length of time after that to get hold of the outstanding docs. They give you a paper that allows you back into the consular, but you must still make another appointment.
It would be interesting to know, though, how many Lotto winners did actually use a specialist lawyer...?
Perhaps we could organise a poll?