I don't bother much anymore, but when I do, I use the ladies foaming gel with a Mach 3 Turbo now. The Venus has too large a head for detail work.
When I was hardcore about keeping the nethers nice, I used a detail trimmer for shortening and a Seiko Cleancut spiral razor for the sack. The Cleancut does a good job on stubble, so it's a quick way to do your daily maintenance.
Even if you get proficient with the razor, you may still want a fine trimmer to get spots you miss. Don't get a cheap one, because those will pull rather than cut.
There's something called Bikini Zone, and it has lidocaine and asprin to reduce bumps and redness. There are other brands, that do the same thing.