I'm so sorry I haven't replied to more of you lovely people! I got sick and it slipped my mind until now.

I love all these answers and a special thank you to the one who measured their bag and took a pic of it, that's very awesome of you!

You found me what I couldn't find and now I have the dilemma of picking which one to buy. There are some very nice ones and I'm almost convinced to give up on the spinner and go back to two-wheeled. I'll have to deliberate a bit more but these definitely fit the bill.

Thanks again for taking the time to reply and give me links, etc. I have a trip coming up in about 3 weeks so I was starting to get worried, but now I'm not.