想請問各位大大我這樣配置是否可行?

CPU = Intel Core i7 920 2.66GHz 8M LGA1366 Quad-Core Processor Retail retail box 主機板 =Asustek P6T Deluxe X58 DDR3 顯卡 = Asus EAH4870 DK/HTDI/1GD5 / Radeon HD 4870 1G DDR5 256-bit Hard drive = Seagate 1TB SATA 7200rpm Memory = Kingston 1GB DDR3 SDRAM *3 Dvd writer = Asustek DRW-2014L1T Serial-ATA DVD Writer Case = Thermaltake Armor+ MX Black Fan Window Power = 700w Sound card = 創新未來 SB XTREME AUDIO X-FI晶片 想請問這樣配是否有任何問題, 700瓦是否足夠, 這張音效卡配羅技z-5500是否不錯? 用途在繪圖與遊戲 有何需要更改之類的地方? 謝謝[em=66]