download speeds ???

[paudie]

my download speeds are fluctuating all over the place , i watch a lot of movies online , before my downloads were fine but now it's buffering all the time, i recently installed a wireless router.anyone have any ideas??
see my results below

09/05/2007 09:31 1547 kbps (189 KB/s) 218 kbps (27 KB/s) 53 % 42 ms 149 ms
09/05/2007 099 1671 kbps (204 KB/s) 217 kbps (27 KB/s) 85 % 37 ms 101 ms
09/05/2007 098 1752 kbps (214 KB/s) 216 kbps (27 KB/s) 99 % 37 ms 45 ms
08/05/2007 182 1027 kbps (126 KB/s) 211 kbps (26 KB/s) 77 % 156 ms 196 ms
08/05/2007 17:57 706 kbps (87 KB/s) 119 kbps (15 KB/s) 28 % 207 ms 571 ms
08/05/2007 17:48 623 kbps (77 KB/s) 204 kbps (25 KB/s) 44 % 210 ms 537 ms
08/05/2007 17:47 229 kbps (28 KB/s) 212 kbps (26 KB/s) 37 % 158 ms 588 ms
24/04/2007 22:41 1631 kbps (200 KB/s) 217 kbps (27 KB/s) 88 % 43 ms 117 ms
Total Averages:
1148 kbps (141 KB/s) 202kbps (25KB/s) 64 % 112 ms 288 ms