There's lots of ways to tie buggers and they almost all effective; you're going to have a tough time keeping fish off that fly. I like to keep them as simple as possible since where I fish them I'm going to lose them and I hate spending a lot of vise time on sacrificial flies.
On fairly small hooks (I think this is a #6 4xl) I just wrap the butts of the marabou tail forward to use as the body, tie in the hackle tip first and wrap back down the body (gives the hackle a swept-back effect that I like), and then wrap the wire rib (tied in with the tail) forward to secure the hackle. Even with the Sexi-floss legs, this one's about 5 minutes to tie.
Regards,
Scott