Which Wine Cooler would you recommend?

[Innkeeper]

I wouldn't worry about how cold the basement is; it surely isn't as cold as your fridge. Even if it warms up in summer, it should still be cool enough for storage. You can store your wine there for a fraction of the cost of the unit(s) you will need for upstairs storage. You can find wine racks almost anywhere. If you don't want to search online, ask the people in your wine store. Buy units that can easily be added to when necessary. Cheers!