手上的笔记本电脑坏掉了，现在打算买一台台式电脑。到戴尔的网站上看了，看了两款，请高手们给点意见。我买电脑主要就是上上网，写写东西，还有就是存储我的数码相片。我把两款电脑的配置都抄了下来。
Dimension E521 （home office Desktop） -- $699.00
Processor – AMD AthlonTM 64x2 Dual-Core 4000+
Operating System – Genuine Windows Vista Home Premium
Monitor – 19 inch UltrasharpTM SP1908FP Digital Flat Panel
Memory – 2 GB Dual Channel DDR2 SDRAM at 667MHZ-2DIMMS
Hard Drive – 250 GB Serial ATA Hard Drive (7200 RPM) W/ Data Burst Cache
CD ROM/DVD ROM – 16 x DVD +/- RW Drive
Dell(TM) Dimension(TM) 9200 Desktop (for small business) – $699.00
Processor – Intel® Core™ 2 Duo Processor E4300 (2MB L2 cache, 1.8GHZ, 800FSB)
Operating System – Genuine Windows XP Home Edition
Monitor – 20 inch E207WFP Digital Flat Panel
Memory – 1 GB Dual Channel DDR2 SDRAM at 667MHZ-2DIMMS
Hard Drive – 80 GB Serial ATA Hard Drive (7200 RPM) W/ DataBurst CacheTM
CD ROM/DVD ROM – Single Drive: 16 x CD/DVD burner (DVD +/- RW) w/double layer writer capability
其它问题：
CD or DVD Drive --
Dual Drives: 48x Combo + 16x DVD+/-RW w/ dbl layer write capable
Dual Drives: 16x DVD-ROM Drive + 16x DVD+/-RW w/ dbl layer write capable 如果我只是想刻录CD，需要装哪一个？
Monitor -- E228WFP Widescreen Digital Flat Panel 和UltrasharpTM SP1908FP Digital Flat Panel有什么不同？要不要换呢？
Video Card -- 随机装的NVIDZA GeForce 6150 LE Integrated Graphics GPU, 用不用换成256mb NVIDIA GeForce 7300 LE Turbo Cache?
Sound Cards -- 随机装的Integrated 7.1 Channel Audio, 用不用换成 Integrated Sound Blaster Audigy HD Software Edition?
我现在是无线上网，请问我得买什么型号的wireless broadband router呢？多谢各位的指教！