silverhairb,
It all depends on how much it is and if it the ONLY switches you will have

The exam is based on the 2950's and 2960's
Given how cheap but
close-to-current the 2950 switches are, I think for CCNA you should get at least one 2950 for a home lab. They go on Ebay for from $70 to $130.
You can get the
older, cheaper 3500XL series or 2900XL series if you're really pressed for cash, but I don't recommend it as a replacement for the 2950. I have several 2924XL's and 1900's because I got them for $15 each for the 2924's and $5 each for the 1900's, I also like to learn what I still see out in the real world also!!!
You should get 2-3 switches to practice trunking, spanning tree features, VTP, and so forth. But make sure at least 1 of them is a 2950. It's worth the extra money to have a switch as the 2950, that is so similar to the current models, as well as the fact it is what the test questions are based on.
You really should read the Wendell Odom 7 part CCNA lab blog at Networkworld -
Hope this helps!!
E.A. Broda
CCNA, CCDA, CCAI, Network +