Hi Kevin, welcome to the DIS boards.
The best place to start if you are new to
Disneyland Paris is to buy
this book. The author, Simon Veness, is a regular contributor here, and his book is probably the best guidebook to DLP. You'll also find a wealth of experience on this board, so please feel free to ask any questions you have. Another good place for unofficial reviews is
this website.
Simon's book has good reviews of the hotels at DLP. They are all child friendly, so the choice will depend mainly on your budget. My favourite of the moderate price hotels is the Sequoia Lodge, but that's only becuase I like the themeing. The other hotels are also nice. DLP hotels often fully book during the summer months, so don't wait until too late to book. There are very rarely any discounts to be had by booking late, so I would bookas soon as as the brochures come out and you know your dates for travelling. There is not that much variation in prices across the independent operators and the official DLP UK office. You can pick up DLP brochures in most travel agents, and check the official DLP website for a guide to prices.
If you are planning a visit in July try to go after the 10th of the month. Around about this date (I'm not sure exactly when in 2004) DLP goes to its extended sumer opeing hours (9am-11pm for Disneyland, 9am-8pm fo the Walt Disney Studios). Having these extar hours at the end of the day means it is possible to take a midday break without missing out on too much time to ride the attractions, and means you also get nightly parade and fireworks everyday.
There are a very wide range of rides and attractions, some of which have height limits so it may be that your youngest may not be tall enough for everything at DLP. However, this should not be a problem as there will be plenty for him to do.
Please feel free to ask any more questions.
Regards
Rob