Hello, I'll be updating my GPU from the 7300GT. The 7300GT consumes about 25w and I could feel the heat in a small room along with stuffy air from the fans. Will an 8800GT or Ultra (100w to 125w) with EFI32 really add more heat in a room ? I could also opt for a GT120 with EFI32 or a plain GT610 (30 watts) with no boot screen. Cheerio !