X-Men? #1 = definetley
Spawn #1 = I'm not sure, I? haven't kept any of mine, they don't sell Spawn in normal newsagents anymore but probably in comic book stores. If you have Spawn #1 go to a collecter/comic book store and ask them, it could be worth something it's always worth checking the value of them.
In my opinion, I would value Spawn #1 as being worth $100
Izzy?