4gb Memory for New Xbox?

I thinking of getting the new xbox, because mine broke 3 years ago and i have been too lazy to send it in to get it fixed. so the new xbox slim.. starts at $199.99, with 4gb memory? is 4gb alot of storage space for game saves and what not for an xbox? i need to know D:

Suggestion:

This one is the best.
new black xbox 360
Product Features
Edition: 4GB Kinect Bundle
* Kinect sensor
* Built-in Wi-Fi
* Xbox LIVE
* Xbox 360 wireless controller
* Kinect Adventures game

http://www.amazon.com/Xbox-360-4GB-Console-Kinect/dp/B003O6EE4U/?tag=knapaaai-20

http://rover.ebay.com/rover/1/711-53200-19255-0/1?ff3=4&pub=5574865779&toolid=10001&campid=5336440665&customid=knapaaai&mpre=http%3a%2f%2fvideo-games.shop.ebay.com%2fi.html%3f_nkw%3dnew%2bxbox%2b360%26_sacat%3d1249%26_dmpt%3dVideo_Games_Games%26_odkw%3dLego%2bIndiana%2bJones%2b2.%2bThe%2bAdventure%2bContinues%26_osacat%3d1249%26_trksid%3dp3286.c0.m270.l1313

@@@