OH MEL! You are just going to walk right into my old life.

: Can I move in with you during visits.

Miss my old stomping grounds, my neighbors were the BEST! So go look at the house...probably Susan's if I'm right, haven't looked though.
The gyms: The Y in Hilliard is wonderful. Has all the equipment for decent strength training. Not all of the toys I would like to see but they haven't said anything to me when I brought in my own things. They do have 2 BOSU, a few med balls, balance board, some really crappy tubular bands which I was pretty vocal about just before I left.

Do me a favor, ask Chris if he's ever considered buying flat bands for assisted pullups.

Great Freemotion equipment, I think there were kettlebells kept in Chris's office but I think you needed ask for them. I also used the group exercise room for my yoga, speed rope, functional training sessions when it wasn't in use. Always had it to myself. Made a lot of friends there and it surprised me how it became such an important part of my life the past five years.
Hilliard Ray Patch Y
http://www.ymcacolumbus.org/hilliard/
Overall, they pretty much left me alone to do what I needed. I think the added bonus to the Y is that it does have an indoor running track. SMALL! but at least there is one for quick interval sprints in between sets. REALLY missing that right now. Also good for farmers walk, walking lunges. etc.
The training studio in Grandview. Another wonderful place. There is not a week that doesn't go by that I don't think about it as a missed opportunity. Nick and Sharon Osborne at GO:Fitness have something really special there. They offer what the Y has a difficult time doing, teaching people how to use the equipment correctly. I worked with Charlie who was one of the head trainers. He's a total ThinkGeek fan and nearly freaked when he found out that DH was leaving for DC to work for them. Charlie is very very good with form and technique. Nick and Sharon are very personable. Go and check them out too. I received a shout out email from Sharon back in June but at that time I just was in the thick of everything with this relocations and missed about 3/4 of all my emails.
Go Fitness:
http://www.gofitnesscenter.com/
God. I can't even LOOK at their website without getting all worked up. That was a hard one to leave for me. Anyway, go check them both out and enjoy!
There is also a CrossFit/MMA in Hilliard. It began I think about two years ago. I haven't checked out. The first year I was at GOFitness and then when DH left for DC I needed a place where I could bring my sons while I worked out so it was back to the Y. It was fine, but I did feel like I was personally wasting time there since there were other things I wanted to learn.
http://ohiokravmaga.com/crossfit.html
You've got some great choices here. Best of luck in your search and let me know how the gym shopping goes. Oh,

Don't bother with Sawmill Premier...can we say GLOBO gym. OMG. No power cage there either.