Some stories, some all human, some not, some evil Spike and some just very difficult damaged Spike, all of them quite good in their different ways. I haven't done links but you can google them to find them quite easily I think.
Freedom by icemink
Summary: Set in the world of the The Wish. Instead of snapping Buffy's neck, the Master keeps her imprisoned so that another Slayer can't be called, and so that he will be free to carry out his plans. In the mean time he's called the last of the Aurelius line, Drusilla and Spike, to help him run his new kingdom in Sunnydale. Author's Notes: Warnings: Character death. Bloodplay. This is a fairly dark story, and Spike will be acting on more of his vampire impulses than he does in most Spuffy stories.
Can I Keep You by CandyNicks
Summary: Vampire Spike meets runaway Buffy on the streets of Victorian England. He takes her home fully intending to kill her after he's had his way with her, but falls in love with her instead. Buffy needs a place to hide, but will she stay once she finds out who Spike really is?.....
Winters Storm By greyangel
Summary: Angel and Spike are members of a gangster type family ruled over by Masters (in NY) Angel runs the LA branch of the 'family' and after an affair with Buffy he disappears. Masters is furious and is determined to bring his wayward child back to be punished. Spike and Dru are lovers and have been living in NY working for Masters but when Angel vanished he took Drusilla with him...Spike is enraged and seeking revenge...then he discovers Angel's one true love (Buffy) and the perfect revenge is within his grasp...this is a Spike and Buffy story...how hate and revenge turn into lust and desire and finally into trust and love...
In the Army Now by Im_Bloody_English
Summary: Buffy joins the military and heads off to Basic Training. The Boot Camp experience can be rough enough to endure, but there's something, or rather someone that will make her time spent becoming a soldier ten times worse... a Drill Sergeant sent straight from the bowels of hell that takes an instant dislike to her mere presence, Spike. He's evil, he's mean, he hates her but even worse... he lusts for her.
Bring Me to Life By sweetie
Summary: AU. Buffy Summers is the blind daughter of a wealthy business man. Spike Tyler is the misogynistic ex-cop hired to kill her. With five hundred grand on the line and LA's finest police hot on their tail, will Spike be able to go through with it? More importantly, will he be able to look past the abuse he experienced as a child and see that not all women are who he made them out to be?
A Terrible Thing by Herself
Summary: A couple of years after the final battle in Sunnydale, Buffy interrupts her life of international leisure to travel to Vietnam, for the prospect of seeing someone she never thought she'd see again. | 
