1. I recommend to get more memory or ram. Price varies from 39 to 100 and more
RAM http://www.bestbuy.com/site/ValueRAM+-+1GB+PC3200+DDR+Desktop+Memory+Module/9414396.p?id=1218101173468&skuId=9414396
2. I recommend to get more USB ports . You can buy an external for 19.99 or a desktop card
http://www.bestbuy.com/site/Griffin+Technology+-+SmartShare+2-Port+USB+2.0+Hub/9225457.p?id=1218062423237&skuId=9225457&st=USB external PORT
3.I recommendd to replace the internal 24x CD-RW + 8X DVD R b/c it is not a very difficult thing to do, and can improve the computer. However, you can also use and external one.
http://www.bestbuy.com/site/Tascam+-+CD+Pro+Recorder/8589707.p?id=1218099086637&skuId=8589707&st=24x CD-RW + 8X DVD R&cp=1&lp=1
http://www.walmart.com/catalog/product.do?product_id=11331556&findingMethod=rr



