It's a tech geek team-up as 'Eureka' uber-nerd Fargo (Neil Grayston) visits computer hacker Claudia (Allison Scagloitti) on tonight's episode of 'Warehouse 13.'

The Syfy crossover -- which continues with Friday's episode of 'Eureka' -- was inspired by Grayston and Scagliotti's real-life friendship, the pair told reporters recently.

"Our chemistry plays so well in life that I think our respective show runners and the good people over at Syfy realized what a commodity it could be to blend these shows," Scagliotti said during a conference call on Monday.

Whatever the inspiration, it's always fun to see characters from our favorite sci-fi shows cross over into each other's worlds to compare notes, fight the good fight, and even do a little flirting. In celebration of this week's 'Warehouse 13'/'Eureka' crossover event, here are a few current sci-fi shows we'd like to see mix it up:

'Stargate Universe' meets 'Stargate Atlantis.' This sounds like a pretty easy one. They're both 'Stargate' shows, which means they already take place in the same universe, but pulling off an 'SGU'/'SGA' crossover might not be as easy as it sounds. For one, 'Atlantis' was canceled a few years ago, which could make rounding up the show's major cast members a little tough. Plus, all of the action on 'Universe' takes place in the outer reaches of space; the 'Atlantis' team was floating in the middle of the San Francisco Bay last time we saw them. But despite the apparent hurdles, 'SGU' executive producer Joseph Mallozzi recently confirmed that two members of the 'Atlantis' cast will appear in a season 2 episode of 'SGU.' We don't know who they are or what they'll be doing, but something tells me those pesky communication stones will be involved.

'Fringe' meets 'Haven.' This has to happen -- immediately. The 'Fringe' team needs to take a break from dealing with parallel dimensions, time-traveling scientists and other awesome unexplained phenomena to visit Haven and get to the bottom of the town's mysterious "troubles." No doubt Walter, Olivia and Peter would put a lid on all the random craziness going on in Haven in less than a week, leading Audrey Parker to leave town and rejoin the FBI and prompting Syfy to finally cancel that miserable show.

'Sanctuary' meets 'Human Target.' Yeah, yeah ... 'Human Target' isn't a sci-fi show and the fans want to keep it that way. But how awesome would it be to see Christopher Chance and Guerrero slugging it out with some of 'Sanctuary's super powered abnormals? Really awesome, that's how awesome! Chance is a superhero born on the comic book page. It only makes sense for the guy to mix it up with a few supernatural beasties every know and then. Transporting him to Helen Magnus' mutant-infested world for a one-off ep would deliver the geeky goods without cramping 'Human Target's more realistic style.

Should Sookie Stackhouse hop a plane to Mystic Falls to meet the cast of 'The Vampire Diaries?' Will The Doctor ever crash the TARDIS into the Starship Enterprise? What sci-fi TV crossovers do you want to see?